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| <div class="section" id="pyarrow-largelistarray"> |
| <h1>pyarrow.LargeListArray<a class="headerlink" href="#pyarrow-largelistarray" title="Permalink to this headline">¶</a></h1> |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">pyarrow.</span></span><span class="sig-name descname"><span class="pre">LargeListArray</span></span><a class="headerlink" href="#pyarrow.LargeListArray" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">pyarrow.lib.BaseListArray</span></code></p> |
| <p>Concrete class for Arrow arrays of a large list data type.</p> |
| <p>Identical to ListArray, but 64-bit offsets.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.__init__"> |
| <span class="sig-name descname"><span class="pre">__init__</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.__init__" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <p class="rubric">Methods</p> |
| <table class="longtable table autosummary"> |
| <colgroup> |
| <col style="width: 10%" /> |
| <col style="width: 90%" /> |
| </colgroup> |
| <tbody> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.__init__" title="pyarrow.LargeListArray.__init__"><code class="xref py py-obj docutils literal notranslate"><span class="pre">__init__</span></code></a>(*args, **kwargs)</p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.buffers" title="pyarrow.LargeListArray.buffers"><code class="xref py py-obj docutils literal notranslate"><span class="pre">buffers</span></code></a>(self)</p></td> |
| <td><p>Return a list of Buffer objects pointing to this array's physical storage.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.cast" title="pyarrow.LargeListArray.cast"><code class="xref py py-obj docutils literal notranslate"><span class="pre">cast</span></code></a>(self, target_type[, safe])</p></td> |
| <td><p>Cast array values to another data type</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.dictionary_encode" title="pyarrow.LargeListArray.dictionary_encode"><code class="xref py py-obj docutils literal notranslate"><span class="pre">dictionary_encode</span></code></a>(self[, null_encoding])</p></td> |
| <td><p>Compute dictionary-encoded representation of array.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.diff" title="pyarrow.LargeListArray.diff"><code class="xref py py-obj docutils literal notranslate"><span class="pre">diff</span></code></a>(self, Array other)</p></td> |
| <td><p>Compare contents of this array against another one.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.drop_null" title="pyarrow.LargeListArray.drop_null"><code class="xref py py-obj docutils literal notranslate"><span class="pre">drop_null</span></code></a>(self)</p></td> |
| <td><p>Remove missing values from an array.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.equals" title="pyarrow.LargeListArray.equals"><code class="xref py py-obj docutils literal notranslate"><span class="pre">equals</span></code></a>(self, Array other)</p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.fill_null" title="pyarrow.LargeListArray.fill_null"><code class="xref py py-obj docutils literal notranslate"><span class="pre">fill_null</span></code></a>(self, fill_value)</p></td> |
| <td><p>See pyarrow.compute.fill_null for usage.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.filter" title="pyarrow.LargeListArray.filter"><code class="xref py py-obj docutils literal notranslate"><span class="pre">filter</span></code></a>(self, Array mask, *[, ...])</p></td> |
| <td><p>Select values from an array.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.flatten" title="pyarrow.LargeListArray.flatten"><code class="xref py py-obj docutils literal notranslate"><span class="pre">flatten</span></code></a>(self)</p></td> |
| <td><p>Unnest this ListArray/LargeListArray by one level.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.format" title="pyarrow.LargeListArray.format"><code class="xref py py-obj docutils literal notranslate"><span class="pre">format</span></code></a>(self, **kwargs)</p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.from_arrays" title="pyarrow.LargeListArray.from_arrays"><code class="xref py py-obj docutils literal notranslate"><span class="pre">from_arrays</span></code></a>(offsets, values, ...)</p></td> |
| <td><p>Construct LargeListArray from arrays of int64 offsets and values.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.from_buffers" title="pyarrow.LargeListArray.from_buffers"><code class="xref py py-obj docutils literal notranslate"><span class="pre">from_buffers</span></code></a>(DataType type, length, buffers)</p></td> |
| <td><p>Construct an Array from a sequence of buffers.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.from_pandas" title="pyarrow.LargeListArray.from_pandas"><code class="xref py py-obj docutils literal notranslate"><span class="pre">from_pandas</span></code></a>(obj[, mask, type])</p></td> |
| <td><p>Convert pandas.Series to an Arrow Array.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.get_total_buffer_size" title="pyarrow.LargeListArray.get_total_buffer_size"><code class="xref py py-obj docutils literal notranslate"><span class="pre">get_total_buffer_size</span></code></a>(self)</p></td> |
| <td><p>The sum of bytes in each buffer referenced by the array.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.index" title="pyarrow.LargeListArray.index"><code class="xref py py-obj docutils literal notranslate"><span class="pre">index</span></code></a>(self, value[, start, end, memory_pool])</p></td> |
| <td><p>Find the first index of a value.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.is_null" title="pyarrow.LargeListArray.is_null"><code class="xref py py-obj docutils literal notranslate"><span class="pre">is_null</span></code></a>(self, *[, nan_is_null])</p></td> |
| <td><p>Return BooleanArray indicating the null values.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.is_valid" title="pyarrow.LargeListArray.is_valid"><code class="xref py py-obj docutils literal notranslate"><span class="pre">is_valid</span></code></a>(self)</p></td> |
| <td><p>Return BooleanArray indicating the non-null values.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.slice" title="pyarrow.LargeListArray.slice"><code class="xref py py-obj docutils literal notranslate"><span class="pre">slice</span></code></a>(self[, offset, length])</p></td> |
| <td><p>Compute zero-copy slice of this array.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.sum" title="pyarrow.LargeListArray.sum"><code class="xref py py-obj docutils literal notranslate"><span class="pre">sum</span></code></a>(self, **kwargs)</p></td> |
| <td><p>Sum the values in a numerical array.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.take" title="pyarrow.LargeListArray.take"><code class="xref py py-obj docutils literal notranslate"><span class="pre">take</span></code></a>(self, indices)</p></td> |
| <td><p>Select values from an array.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.to_numpy" title="pyarrow.LargeListArray.to_numpy"><code class="xref py py-obj docutils literal notranslate"><span class="pre">to_numpy</span></code></a>(self[, zero_copy_only, writable])</p></td> |
| <td><p>Return a NumPy view or copy of this array (experimental).</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.to_pandas" title="pyarrow.LargeListArray.to_pandas"><code class="xref py py-obj docutils literal notranslate"><span class="pre">to_pandas</span></code></a>(self[, memory_pool, categories, ...])</p></td> |
| <td><p>Convert to a pandas-compatible NumPy array or DataFrame, as appropriate</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.to_pylist" title="pyarrow.LargeListArray.to_pylist"><code class="xref py py-obj docutils literal notranslate"><span class="pre">to_pylist</span></code></a>(self)</p></td> |
| <td><p>Convert to a list of native Python objects.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.to_string" title="pyarrow.LargeListArray.to_string"><code class="xref py py-obj docutils literal notranslate"><span class="pre">to_string</span></code></a>(self, *, int indent=2, ...)</p></td> |
| <td><p>Render a "pretty-printed" string representation of the Array.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.tolist" title="pyarrow.LargeListArray.tolist"><code class="xref py py-obj docutils literal notranslate"><span class="pre">tolist</span></code></a>(self)</p></td> |
| <td><p>Alias of to_pylist for compatibility with NumPy.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.unique" title="pyarrow.LargeListArray.unique"><code class="xref py py-obj docutils literal notranslate"><span class="pre">unique</span></code></a>(self)</p></td> |
| <td><p>Compute distinct elements in array.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.validate" title="pyarrow.LargeListArray.validate"><code class="xref py py-obj docutils literal notranslate"><span class="pre">validate</span></code></a>(self, *[, full])</p></td> |
| <td><p>Perform validation checks.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.value_counts" title="pyarrow.LargeListArray.value_counts"><code class="xref py py-obj docutils literal notranslate"><span class="pre">value_counts</span></code></a>(self)</p></td> |
| <td><p>Compute counts of unique elements in array.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.value_lengths" title="pyarrow.LargeListArray.value_lengths"><code class="xref py py-obj docutils literal notranslate"><span class="pre">value_lengths</span></code></a>(self)</p></td> |
| <td><p>Return integers array with values equal to the respective length of each list element.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.value_parent_indices" title="pyarrow.LargeListArray.value_parent_indices"><code class="xref py py-obj docutils literal notranslate"><span class="pre">value_parent_indices</span></code></a>(self)</p></td> |
| <td><p>Return array of same length as list child values array where each output value is the index of the parent list array slot containing each child value.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.view" title="pyarrow.LargeListArray.view"><code class="xref py py-obj docutils literal notranslate"><span class="pre">view</span></code></a>(self, target_type)</p></td> |
| <td><p>Return zero-copy "view" of array as another data type.</p></td> |
| </tr> |
| </tbody> |
| </table> |
| <p class="rubric">Attributes</p> |
| <table class="longtable table autosummary"> |
| <colgroup> |
| <col style="width: 10%" /> |
| <col style="width: 90%" /> |
| </colgroup> |
| <tbody> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.nbytes" title="pyarrow.LargeListArray.nbytes"><code class="xref py py-obj docutils literal notranslate"><span class="pre">nbytes</span></code></a></p></td> |
| <td><p>Total number of bytes consumed by the elements of the array.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.null_count" title="pyarrow.LargeListArray.null_count"><code class="xref py py-obj docutils literal notranslate"><span class="pre">null_count</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.offset" title="pyarrow.LargeListArray.offset"><code class="xref py py-obj docutils literal notranslate"><span class="pre">offset</span></code></a></p></td> |
| <td><p>A relative position into another array's data.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.offsets" title="pyarrow.LargeListArray.offsets"><code class="xref py py-obj docutils literal notranslate"><span class="pre">offsets</span></code></a></p></td> |
| <td><p>Return the offsets as an int64 array.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.type" title="pyarrow.LargeListArray.type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">type</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.LargeListArray.values" title="pyarrow.LargeListArray.values"><code class="xref py py-obj docutils literal notranslate"><span class="pre">values</span></code></a></p></td> |
| <td><p></p></td> |
| </tr> |
| </tbody> |
| </table> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.buffers"> |
| <span class="sig-name descname"><span class="pre">buffers</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.buffers" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Return a list of Buffer objects pointing to this array’s physical |
| storage.</p> |
| <p>To correctly interpret these buffers, you need to also apply the offset |
| multiplied with the size of the stored data type.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.cast"> |
| <span class="sig-name descname"><span class="pre">cast</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">target_type</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">safe</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.cast" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Cast array values to another data type</p> |
| <p>See pyarrow.compute.cast for usage</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.dictionary_encode"> |
| <span class="sig-name descname"><span class="pre">dictionary_encode</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">null_encoding</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'mask'</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.dictionary_encode" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Compute dictionary-encoded representation of array.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.diff"> |
| <span class="sig-name descname"><span class="pre">diff</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Array</span> <span class="pre">other</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.diff" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Compare contents of this array against another one.</p> |
| <p>Return string containing the result of arrow::Diff comparing contents |
| of this array against the other array.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.drop_null"> |
| <span class="sig-name descname"><span class="pre">drop_null</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.drop_null" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Remove missing values from an array.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.equals"> |
| <span class="sig-name descname"><span class="pre">equals</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Array</span> <span class="pre">other</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.equals" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.fill_null"> |
| <span class="sig-name descname"><span class="pre">fill_null</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fill_value</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.fill_null" title="Permalink to this definition">¶</a></dt> |
| <dd><p>See pyarrow.compute.fill_null for usage.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.filter"> |
| <span class="sig-name descname"><span class="pre">filter</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Array</span> <span class="pre">mask</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">null_selection_behavior=u'drop'</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.filter" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Select values from an array. See pyarrow.compute.filter for full usage.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.flatten"> |
| <span class="sig-name descname"><span class="pre">flatten</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.flatten" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Unnest this ListArray/LargeListArray by one level.</p> |
| <p>The returned Array is logically a concatenation of all the sub-lists |
| in this Array.</p> |
| <p>Note that this method is different from <code class="docutils literal notranslate"><span class="pre">self.values()</span></code> in that |
| it takes care of the slicing offset as well as null elements backed |
| by non-empty sub-lists.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Returns</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>result</strong><span class="classifier"><a class="reference internal" href="pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Array</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.format"> |
| <span class="sig-name descname"><span class="pre">format</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.format" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.from_arrays"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">from_arrays</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">offsets</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">values</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">MemoryPool</span> <span class="pre">pool=None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.from_arrays" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Construct LargeListArray from arrays of int64 offsets and values.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>offsets</strong><span class="classifier"><a class="reference internal" href="pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Array</span></code></a> (<a class="reference internal" href="pyarrow.int64.html#pyarrow.int64" title="pyarrow.int64"><code class="xref py py-obj docutils literal notranslate"><span class="pre">int64</span></code></a> <a class="reference internal" href="#pyarrow.LargeListArray.type" title="pyarrow.LargeListArray.type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">type</span></code></a>)</span></dt><dd></dd> |
| <dt><strong>values</strong><span class="classifier"><a class="reference internal" href="pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Array</span></code></a> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#any" title="(in Python v3.10)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">any</span></code></a> <a class="reference internal" href="#pyarrow.LargeListArray.type" title="pyarrow.LargeListArray.type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">type</span></code></a>)</span></dt><dd></dd> |
| <dt><strong>pool</strong><span class="classifier"><a class="reference internal" href="pyarrow.MemoryPool.html#pyarrow.MemoryPool" title="pyarrow.MemoryPool"><code class="xref py py-obj docutils literal notranslate"><span class="pre">MemoryPool</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><dl> |
| <dt><strong>list_array</strong><span class="classifier"><a class="reference internal" href="#pyarrow.LargeListArray" title="pyarrow.LargeListArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">LargeListArray</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.from_buffers"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">from_buffers</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">DataType</span> <span class="pre">type</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">length</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">buffers</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">null_count=-1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">offset=0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">children=None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.from_buffers" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Construct an Array from a sequence of buffers.</p> |
| <p>The concrete type returned depends on the datatype.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>type</strong><span class="classifier"><a class="reference internal" href="pyarrow.DataType.html#pyarrow.DataType" title="pyarrow.DataType"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataType</span></code></a></span></dt><dd><p>The value type of the array.</p> |
| </dd> |
| <dt><strong>length</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>The number of values in the array.</p> |
| </dd> |
| <dt><strong>buffers</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">List</span></code>[<a class="reference internal" href="pyarrow.Buffer.html#pyarrow.Buffer" title="pyarrow.Buffer"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Buffer</span></code></a>]</span></dt><dd><p>The buffers backing this array.</p> |
| </dd> |
| <dt><strong>null_count</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default -1</span></dt><dd><p>The number of null entries in the array. Negative value means that |
| the null count is not known.</p> |
| </dd> |
| <dt><strong>offset</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default 0</span></dt><dd><p>The array’s logical offset (in values, not in bytes) from the |
| start of each buffer.</p> |
| </dd> |
| <dt><strong>children</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">List</span></code>[<a class="reference internal" href="pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Array</span></code></a>], default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Nested type children with length matching type.num_fields.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><dl> |
| <dt><strong>array</strong><span class="classifier"><a class="reference internal" href="pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Array</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.from_pandas"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">from_pandas</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">obj</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">mask=None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">type=None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">safe=True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">MemoryPool</span> <span class="pre">memory_pool=None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.from_pandas" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Convert pandas.Series to an Arrow Array.</p> |
| <p>This method uses Pandas semantics about what values indicate |
| nulls. See pyarrow.array for more general conversion from arrays or |
| sequences to Arrow arrays.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>obj</strong><span class="classifier"><a class="reference external" href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.22)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">ndarray</span></code></a>, <a class="reference external" href="https://pandas.pydata.org/docs/reference/api/pandas.Series.html#pandas.Series" title="(in pandas v1.4.0)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pandas.Series</span></code></a>, <a class="reference internal" href="pyarrow.array.html#pyarrow.array" title="pyarrow.array"><code class="xref py py-func docutils literal notranslate"><span class="pre">array-like</span></code></a></span></dt><dd></dd> |
| <dt><strong>mask</strong><span class="classifier"><a class="reference external" href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.22)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">array</span></code></a> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>), optional</span></dt><dd><p>Indicate which values are null (True) or not null (False).</p> |
| </dd> |
| <dt><strong>type</strong><span class="classifier"><a class="reference internal" href="pyarrow.DataType.html#pyarrow.DataType" title="pyarrow.DataType"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pyarrow.DataType</span></code></a></span></dt><dd><p>Explicit type to attempt to coerce to, otherwise will be inferred |
| from the data.</p> |
| </dd> |
| <dt><strong>safe</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>Check for overflows or other unsafe conversions.</p> |
| </dd> |
| <dt><strong>memory_pool</strong><span class="classifier"><a class="reference internal" href="pyarrow.MemoryPool.html#pyarrow.MemoryPool" title="pyarrow.MemoryPool"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pyarrow.MemoryPool</span></code></a>, optional</span></dt><dd><p>If not passed, will allocate memory from the currently-set default |
| memory pool.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><dl> |
| <dt><strong>array</strong><span class="classifier"><a class="reference internal" href="pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pyarrow.Array</span></code></a> or <a class="reference internal" href="pyarrow.ChunkedArray.html#pyarrow.ChunkedArray" title="pyarrow.ChunkedArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pyarrow.ChunkedArray</span></code></a></span></dt><dd><p>ChunkedArray is returned if object data overflows binary buffer.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| <p class="rubric">Notes</p> |
| <p>Localized timestamps will currently be returned as UTC (pandas’s native |
| representation). Timezone-naive data will be implicitly interpreted as |
| UTC.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.get_total_buffer_size"> |
| <span class="sig-name descname"><span class="pre">get_total_buffer_size</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.get_total_buffer_size" title="Permalink to this definition">¶</a></dt> |
| <dd><p>The sum of bytes in each buffer referenced by the array.</p> |
| <p>An array may only reference a portion of a buffer. |
| This method will overestimate in this case and return the |
| byte size of the entire buffer.</p> |
| <p>If a buffer is referenced multiple times then it will |
| only be counted once.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.index"> |
| <span class="sig-name descname"><span class="pre">index</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">value</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">start</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">end</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">memory_pool</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.index" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Find the first index of a value.</p> |
| <p>See pyarrow.compute.index for full usage.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.is_null"> |
| <span class="sig-name descname"><span class="pre">is_null</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">nan_is_null</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.is_null" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Return BooleanArray indicating the null values.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>nan_is_null</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a> (optional, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a>)</span></dt><dd><p>Whether floating-point NaN values should also be considered null.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><dl> |
| <dt><strong>array</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a> <a class="reference internal" href="pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Array</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.is_valid"> |
| <span class="sig-name descname"><span class="pre">is_valid</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.is_valid" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Return BooleanArray indicating the non-null values.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.nbytes"> |
| <span class="sig-name descname"><span class="pre">nbytes</span></span><a class="headerlink" href="#pyarrow.LargeListArray.nbytes" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Total number of bytes consumed by the elements of the array.</p> |
| <p>In other words, the sum of bytes from all buffer |
| ranges referenced.</p> |
| <p>Unlike <cite>get_total_buffer_size</cite> this method will account for array |
| offsets.</p> |
| <p>If buffers are shared between arrays then the shared |
| portion will be counted multiple times.</p> |
| <p>The dictionary of dictionary arrays will always be counted in their |
| entirety even if the array only references a portion of the dictionary.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.null_count"> |
| <span class="sig-name descname"><span class="pre">null_count</span></span><a class="headerlink" href="#pyarrow.LargeListArray.null_count" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.offset"> |
| <span class="sig-name descname"><span class="pre">offset</span></span><a class="headerlink" href="#pyarrow.LargeListArray.offset" title="Permalink to this definition">¶</a></dt> |
| <dd><p>A relative position into another array’s data.</p> |
| <p>The purpose is to enable zero-copy slicing. This value defaults to zero |
| but must be applied on all operations with the physical storage |
| buffers.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.offsets"> |
| <span class="sig-name descname"><span class="pre">offsets</span></span><a class="headerlink" href="#pyarrow.LargeListArray.offsets" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Return the offsets as an int64 array.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.slice"> |
| <span class="sig-name descname"><span class="pre">slice</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">offset</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">length</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.slice" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Compute zero-copy slice of this array.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>offset</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default 0</span></dt><dd><p>Offset from start of array to slice.</p> |
| </dd> |
| <dt><strong>length</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Length of slice (default is until end of Array starting from |
| offset).</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><dl> |
| <dt><strong>sliced</strong><span class="classifier"><a class="reference internal" href="pyarrow.RecordBatch.html#pyarrow.RecordBatch" title="pyarrow.RecordBatch"><code class="xref py py-obj docutils literal notranslate"><span class="pre">RecordBatch</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.sum"> |
| <span class="sig-name descname"><span class="pre">sum</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.sum" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Sum the values in a numerical array.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.take"> |
| <span class="sig-name descname"><span class="pre">take</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">indices</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.take" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Select values from an array. See pyarrow.compute.take for full usage.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.to_numpy"> |
| <span class="sig-name descname"><span class="pre">to_numpy</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">zero_copy_only</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">writable</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.to_numpy" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Return a NumPy view or copy of this array (experimental).</p> |
| <p>By default, tries to return a view of this array. This is only |
| supported for primitive arrays with the same memory layout as NumPy |
| (i.e. integers, floating point, ..) and without any nulls.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>zero_copy_only</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>If True, an exception will be raised if the conversion to a numpy |
| array would require copying the underlying data (e.g. in presence |
| of nulls, or for non-primitive types).</p> |
| </dd> |
| <dt><strong>writable</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>For numpy arrays created with zero copy (view on the Arrow data), |
| the resulting array is not writable (Arrow data is immutable). |
| By setting this to True, a copy of the array is made to ensure |
| it is writable.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><dl> |
| <dt><strong>array</strong><span class="classifier"><a class="reference external" href="https://numpy.org/doc/stable/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.22)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">numpy.ndarray</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.to_pandas"> |
| <span class="sig-name descname"><span class="pre">to_pandas</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">memory_pool=None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">categories=None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">strings_to_categorical=False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">zero_copy_only=False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">integer_object_nulls=False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">date_as_object=True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">timestamp_as_object=False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">use_threads=True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">deduplicate_objects=True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">ignore_metadata=False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">safe=True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">split_blocks=False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">self_destruct=False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">types_mapper=None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.to_pandas" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Convert to a pandas-compatible NumPy array or DataFrame, as appropriate</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>memory_pool</strong><span class="classifier"><a class="reference internal" href="pyarrow.MemoryPool.html#pyarrow.MemoryPool" title="pyarrow.MemoryPool"><code class="xref py py-obj docutils literal notranslate"><span class="pre">MemoryPool</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Arrow MemoryPool to use for allocations. Uses the default memory |
| pool is not passed.</p> |
| </dd> |
| <dt><strong>strings_to_categorical</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Encode string (UTF8) and binary types to pandas.Categorical.</p> |
| </dd> |
| <dt><strong>categories: list, default empty</strong></dt><dd><p>List of fields that should be returned as pandas.Categorical. Only |
| applies to table-like data structures.</p> |
| </dd> |
| <dt><strong>zero_copy_only</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Raise an ArrowException if this function call would require copying |
| the underlying data.</p> |
| </dd> |
| <dt><strong>integer_object_nulls</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Cast integers with nulls to objects</p> |
| </dd> |
| <dt><strong>date_as_object</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>Cast dates to objects. If False, convert to datetime64[ns] dtype.</p> |
| </dd> |
| <dt><strong>timestamp_as_object</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Cast non-nanosecond timestamps (np.datetime64) to objects. This is |
| useful if you have timestamps that don’t fit in the normal date |
| range of nanosecond timestamps (1678 CE-2262 CE). |
| If False, all timestamps are converted to datetime64[ns] dtype.</p> |
| </dd> |
| <dt><strong>use_threads</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>Whether to parallelize the conversion using multiple threads.</p> |
| </dd> |
| <dt><strong>deduplicate_objects</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Do not create multiple copies Python objects when created, to save |
| on memory use. Conversion will be slower.</p> |
| </dd> |
| <dt><strong>ignore_metadata</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>If True, do not use the ‘pandas’ metadata to reconstruct the |
| DataFrame index, if present</p> |
| </dd> |
| <dt><strong>safe</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>For certain data types, a cast is needed in order to store the |
| data in a pandas DataFrame or Series (e.g. timestamps are always |
| stored as nanoseconds in pandas). This option controls whether it |
| is a safe cast or not.</p> |
| </dd> |
| <dt><strong>split_blocks</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>If True, generate one internal “block” for each column when |
| creating a pandas.DataFrame from a RecordBatch or Table. While this |
| can temporarily reduce memory note that various pandas operations |
| can trigger “consolidation” which may balloon memory use.</p> |
| </dd> |
| <dt><strong>self_destruct</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>EXPERIMENTAL: If True, attempt to deallocate the originating Arrow |
| memory while converting the Arrow object to pandas. If you use the |
| object after calling to_pandas with this option it will crash your |
| program.</p> |
| <p>Note that you may not see always memory usage improvements. For |
| example, if multiple columns share an underlying allocation, |
| memory can’t be freed until all columns are converted.</p> |
| </dd> |
| <dt><strong>types_mapper</strong><span class="classifier">function, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>A function mapping a pyarrow DataType to a pandas ExtensionDtype. |
| This can be used to override the default pandas type for conversion |
| of built-in pyarrow types or in absence of pandas_metadata in the |
| Table schema. The function receives a pyarrow DataType and is |
| expected to return a pandas ExtensionDtype or <code class="docutils literal notranslate"><span class="pre">None</span></code> if the |
| default conversion should be used for that type. If you have |
| a dictionary mapping, you can pass <code class="docutils literal notranslate"><span class="pre">dict.get</span></code> as function.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><dl class="simple"> |
| <dt><a class="reference external" href="https://pandas.pydata.org/docs/reference/api/pandas.Series.html#pandas.Series" title="(in pandas v1.4.0)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pandas.Series</span></code></a> or <a class="reference external" href="https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.html#pandas.DataFrame" title="(in pandas v1.4.0)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pandas.DataFrame</span></code></a> depending on <a class="reference internal" href="#pyarrow.LargeListArray.type" title="pyarrow.LargeListArray.type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">type</span></code></a> of object</dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.to_pylist"> |
| <span class="sig-name descname"><span class="pre">to_pylist</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.to_pylist" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Convert to a list of native Python objects.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Returns</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>lst</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">list</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.to_string"> |
| <span class="sig-name descname"><span class="pre">to_string</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">int</span> <span class="pre">indent=2</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">int</span> <span class="pre">top_level_indent=0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">int</span> <span class="pre">window=10</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">skip_new_lines=False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.to_string" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Render a “pretty-printed” string representation of the Array.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>indent</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default 2</span></dt><dd><p>How much to indent the internal items in the string to |
| the right, by default <code class="docutils literal notranslate"><span class="pre">2</span></code>.</p> |
| </dd> |
| <dt><strong>top_level_indent</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default 0</span></dt><dd><p>How much to indent right the entire content of the array, |
| by default <code class="docutils literal notranslate"><span class="pre">0</span></code>.</p> |
| </dd> |
| <dt><strong>window</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.10)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>How many items to preview at the begin and end |
| of the array when the arrays is bigger than the window. |
| The other elements will be ellipsed.</p> |
| </dd> |
| <dt><strong>skip_new_lines</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.10)"><span class="xref std std-ref">bool</span></a></span></dt><dd><p>If the array should be rendered as a single line of text |
| or if each element should be on its own line.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.tolist"> |
| <span class="sig-name descname"><span class="pre">tolist</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.tolist" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Alias of to_pylist for compatibility with NumPy.</p> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.type"> |
| <span class="sig-name descname"><span class="pre">type</span></span><a class="headerlink" href="#pyarrow.LargeListArray.type" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.unique"> |
| <span class="sig-name descname"><span class="pre">unique</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.unique" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Compute distinct elements in array.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.validate"> |
| <span class="sig-name descname"><span class="pre">validate</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">full</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.validate" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Perform validation checks. An exception is raised if validation fails.</p> |
| <p>By default only cheap validation checks are run. Pass <cite>full=True</cite> |
| for thorough validation checks (potentially O(n)).</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl class="simple"> |
| <dt><strong>full: bool, default False</strong></dt><dd><p>If True, run expensive checks, otherwise cheap checks only.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Raises</dt> |
| <dd class="field-even"><dl class="simple"> |
| <dt><code class="xref py py-obj docutils literal notranslate"><span class="pre">ArrowInvalid</span></code></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.value_counts"> |
| <span class="sig-name descname"><span class="pre">value_counts</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.value_counts" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Compute counts of unique elements in array.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Returns</dt> |
| <dd class="field-odd"><dl class="simple"> |
| <dt><a class="reference internal" href="pyarrow.StructArray.html#pyarrow.StructArray" title="pyarrow.StructArray"><code class="xref py py-obj docutils literal notranslate"><span class="pre">StructArray</span></code></a></dt><dd><p>An array of <input type “Values”, int64 “Counts”> structs</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.value_lengths"> |
| <span class="sig-name descname"><span class="pre">value_lengths</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.value_lengths" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Return integers array with values equal to the respective length of |
| each list element. Null list values are null in the output.</p> |
| <p class="rubric">Examples</p> |
| <div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">arr</span> <span class="o">=</span> <span class="n">pa</span><span class="o">.</span><span class="n">array</span><span class="p">([[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">],</span> <span class="p">[],</span> <span class="kc">None</span><span class="p">,</span> <span class="p">[</span><span class="mi">4</span><span class="p">]],</span> |
| <span class="gp">... </span> <span class="nb">type</span><span class="o">=</span><span class="n">pa</span><span class="o">.</span><span class="n">list_</span><span class="p">(</span><span class="n">pa</span><span class="o">.</span><span class="n">int32</span><span class="p">()))</span> |
| <span class="gp">>>> </span><span class="n">arr</span><span class="o">.</span><span class="n">value_lengths</span><span class="p">()</span> |
| <span class="go"><pyarrow.lib.Int32Array object at 0x7efc5db95910></span> |
| <span class="go">[</span> |
| <span class="go"> 3,</span> |
| <span class="go"> 0,</span> |
| <span class="go"> null,</span> |
| <span class="go"> 1</span> |
| <span class="go">]</span> |
| </pre></div> |
| </div> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.value_parent_indices"> |
| <span class="sig-name descname"><span class="pre">value_parent_indices</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.value_parent_indices" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Return array of same length as list child values array where each |
| output value is the index of the parent list array slot containing each |
| child value.</p> |
| <p class="rubric">Examples</p> |
| <div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">arr</span> <span class="o">=</span> <span class="n">pa</span><span class="o">.</span><span class="n">array</span><span class="p">([[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">],</span> <span class="p">[],</span> <span class="kc">None</span><span class="p">,</span> <span class="p">[</span><span class="mi">4</span><span class="p">]],</span> |
| <span class="gp">... </span> <span class="nb">type</span><span class="o">=</span><span class="n">pa</span><span class="o">.</span><span class="n">list_</span><span class="p">(</span><span class="n">pa</span><span class="o">.</span><span class="n">int32</span><span class="p">()))</span> |
| <span class="gp">>>> </span><span class="n">arr</span><span class="o">.</span><span class="n">value_parent_indices</span><span class="p">()</span> |
| <span class="go"><pyarrow.lib.Int32Array object at 0x7efc5db958a0></span> |
| <span class="go">[</span> |
| <span class="go"> 0,</span> |
| <span class="go"> 0,</span> |
| <span class="go"> 0,</span> |
| <span class="go"> 3</span> |
| <span class="go">]</span> |
| </pre></div> |
| </div> |
| </dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.values"> |
| <span class="sig-name descname"><span class="pre">values</span></span><a class="headerlink" href="#pyarrow.LargeListArray.values" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.LargeListArray.view"> |
| <span class="sig-name descname"><span class="pre">view</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">target_type</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.LargeListArray.view" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Return zero-copy “view” of array as another data type.</p> |
| <p>The data types must have compatible columnar buffer layouts</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>target_type</strong><span class="classifier"><a class="reference internal" href="pyarrow.DataType.html#pyarrow.DataType" title="pyarrow.DataType"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataType</span></code></a></span></dt><dd><p>Type to construct view as.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns</dt> |
| <dd class="field-even"><dl> |
| <dt><strong>view</strong><span class="classifier"><a class="reference internal" href="pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Array</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </dd></dl> |
| |
| </div> |
| |
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