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| <h1>Reference</h1> |
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| <tr> |
| <th colspan="2"> |
| <h2 id="section-multi-file-datasets" class="hasAnchor"><a href="#section-multi-file-datasets" class="anchor"></a>Multi-file datasets</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
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| </tbody><tbody> |
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| <tr> |
| |
| <td> |
| <p><code><a href="open_dataset.html">open_dataset()</a></code> </p> |
| </td> |
| <td><p>Open a multi-file dataset</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="write_dataset.html">write_dataset()</a></code> </p> |
| </td> |
| <td><p>Write a dataset</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="dataset_factory.html">dataset_factory()</a></code> </p> |
| </td> |
| <td><p>Create a DatasetFactory</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="hive_partition.html">hive_partition()</a></code> </p> |
| </td> |
| <td><p>Construct Hive partitioning</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="Dataset.html">Dataset</a></code> </p> |
| </td> |
| <td><p>Multi-file datasets</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="Partitioning.html">Partitioning</a></code> </p> |
| </td> |
| <td><p>Define Partitioning for a Dataset</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="Expression.html">Expression</a></code> </p> |
| </td> |
| <td><p>Arrow expressions</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="Scanner.html">Scanner</a></code> </p> |
| </td> |
| <td><p>Scan the contents of a dataset</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="FileFormat.html">FileFormat</a></code> </p> |
| </td> |
| <td><p>Dataset file formats</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="FileWriteOptions.html">FileWriteOptions</a></code> </p> |
| </td> |
| <td><p>Format-specific write options</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="FragmentScanOptions.html">FragmentScanOptions</a></code> </p> |
| </td> |
| <td><p>Format-specific scan options</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="map_batches.html">map_batches()</a></code> </p> |
| </td> |
| <td><p>Apply a function to a stream of RecordBatches</p></td> |
| </tr> |
| </tbody><tbody> |
| <tr> |
| <th colspan="2"> |
| <h2 id="section-reading-and-writing-files" class="hasAnchor"><a href="#section-reading-and-writing-files" class="anchor"></a>Reading and writing files</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
| |
| |
| </tbody><tbody> |
| |
| |
| <tr> |
| |
| <td> |
| <p><code><a href="read_feather.html">read_feather()</a></code> </p> |
| </td> |
| <td><p>Read a Feather file</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="read_ipc_stream.html">read_arrow()</a></code> <code><a href="read_ipc_stream.html">read_ipc_stream()</a></code> </p> |
| </td> |
| <td><p>Read Arrow IPC stream format</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="read_parquet.html">read_parquet()</a></code> </p> |
| </td> |
| <td><p>Read a Parquet file</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="read_delim_arrow.html">read_delim_arrow()</a></code> <code><a href="read_delim_arrow.html">read_csv_arrow()</a></code> <code><a href="read_delim_arrow.html">read_tsv_arrow()</a></code> </p> |
| </td> |
| <td><p>Read a CSV or other delimited file with Arrow</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="read_json_arrow.html">read_json_arrow()</a></code> </p> |
| </td> |
| <td><p>Read a JSON file</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="write_feather.html">write_feather()</a></code> </p> |
| </td> |
| <td><p>Write data in the Feather format</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="write_ipc_stream.html">write_arrow()</a></code> <code><a href="write_ipc_stream.html">write_ipc_stream()</a></code> </p> |
| </td> |
| <td><p>Write Arrow IPC stream format</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="write_to_raw.html">write_to_raw()</a></code> </p> |
| </td> |
| <td><p>Write Arrow data to a raw vector</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="write_parquet.html">write_parquet()</a></code> </p> |
| </td> |
| <td><p>Write Parquet file to disk</p></td> |
| </tr> |
| </tbody><tbody> |
| <tr> |
| <th colspan="2"> |
| <h2 id="section-c-reader-writer-interface" class="hasAnchor"><a href="#section-c-reader-writer-interface" class="anchor"></a>C++ reader/writer interface</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
| |
| |
| </tbody><tbody> |
| |
| |
| <tr> |
| |
| <td> |
| <p><code><a href="ParquetFileReader.html">ParquetFileReader</a></code> </p> |
| </td> |
| <td><p>ParquetFileReader class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="ParquetArrowReaderProperties.html">ParquetArrowReaderProperties</a></code> </p> |
| </td> |
| <td><p>ParquetArrowReaderProperties class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="ParquetFileWriter.html">ParquetFileWriter</a></code> </p> |
| </td> |
| <td><p>ParquetFileWriter class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="ParquetWriterProperties.html">ParquetWriterProperties</a></code> </p> |
| </td> |
| <td><p>ParquetWriterProperties class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="FeatherReader.html">FeatherReader</a></code> </p> |
| </td> |
| <td><p>FeatherReader class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="CsvTableReader.html">CsvTableReader</a></code> </p> |
| </td> |
| <td><p>Arrow CSV and JSON table reader classes</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="RecordBatchReader.html">RecordBatchReader</a></code> </p> |
| </td> |
| <td><p>RecordBatchReader classes</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="RecordBatchWriter.html">RecordBatchWriter</a></code> </p> |
| </td> |
| <td><p>RecordBatchWriter classes</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="CsvReadOptions.html">CsvReadOptions</a></code> </p> |
| </td> |
| <td><p>File reader options</p></td> |
| </tr> |
| </tbody><tbody> |
| <tr> |
| <th colspan="2"> |
| <h2 id="section-arrow-data-containers" class="hasAnchor"><a href="#section-arrow-data-containers" class="anchor"></a>Arrow data containers</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
| |
| |
| </tbody><tbody> |
| |
| |
| <tr> |
| |
| <td> |
| <p><code><a href="array.html">array</a></code> </p> |
| </td> |
| <td><p>Arrow Arrays</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="ChunkedArray.html">chunked_array()</a></code> </p> |
| </td> |
| <td><p>ChunkedArray class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="Scalar.html">Scalar</a></code> </p> |
| </td> |
| <td><p>Arrow scalars</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="RecordBatch.html">record_batch()</a></code> </p> |
| </td> |
| <td><p>RecordBatch class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="Table.html">Table</a></code> </p> |
| </td> |
| <td><p>Table class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="ArrayData.html">ArrayData</a></code> </p> |
| </td> |
| <td><p>ArrayData class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="buffer.html">buffer()</a></code> </p> |
| </td> |
| <td><p>Buffer class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="read_message.html">read_message()</a></code> </p> |
| </td> |
| <td><p>Read a Message from a stream</p></td> |
| </tr> |
| </tbody><tbody> |
| <tr> |
| <th colspan="2"> |
| <h2 id="section-arrow-data-types-and-schema" class="hasAnchor"><a href="#section-arrow-data-types-and-schema" class="anchor"></a>Arrow data types and schema</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
| |
| |
| </tbody><tbody> |
| |
| |
| <tr> |
| |
| <td> |
| <p><code><a href="Schema.html">schema()</a></code> </p> |
| </td> |
| <td><p>Schema class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="unify_schemas.html">unify_schemas()</a></code> </p> |
| </td> |
| <td><p>Combine and harmonize schemas</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="type.html">type()</a></code> </p> |
| </td> |
| <td><p>infer the arrow Array type from an R vector</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="dictionary.html">dictionary()</a></code> </p> |
| </td> |
| <td><p>Create a dictionary type</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="Field.html">field()</a></code> </p> |
| </td> |
| <td><p>Field class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="read_schema.html">read_schema()</a></code> </p> |
| </td> |
| <td><p>read a Schema from a stream</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="data-type.html">int8()</a></code> <code><a href="data-type.html">int16()</a></code> <code><a href="data-type.html">int32()</a></code> <code><a href="data-type.html">int64()</a></code> <code><a href="data-type.html">uint8()</a></code> <code><a href="data-type.html">uint16()</a></code> <code><a href="data-type.html">uint32()</a></code> <code><a href="data-type.html">uint64()</a></code> <code><a href="data-type.html">float16()</a></code> <code><a href="data-type.html">halffloat()</a></code> <code><a href="data-type.html">float32()</a></code> <code><a href="data-type.html">float()</a></code> <code><a href="data-type.html">float64()</a></code> <code><a href="data-type.html">boolean()</a></code> <code><a href="data-type.html">bool()</a></code> <code><a href="data-type.html">utf8()</a></code> <code><a href="data-type.html">large_utf8()</a></code> <code><a href="data-type.html">binary()</a></code> <code><a href="data-type.html">large_binary()</a></code> <code><a href="data-type.html">fixed_size_binary()</a></code> <code><a href="data-type.html">string()</a></code> <code><a href="data-type.html">date32()</a></code> <code><a href="data-type.html">date64()</a></code> <code><a href="data-type.html">time32()</a></code> <code><a href="data-type.html">time64()</a></code> <code><a href="data-type.html">null()</a></code> <code><a href="data-type.html">timestamp()</a></code> <code><a href="data-type.html">decimal()</a></code> <code><a href="data-type.html">struct()</a></code> <code><a href="data-type.html">list_of()</a></code> <code><a href="data-type.html">large_list_of()</a></code> <code><a href="data-type.html">fixed_size_list_of()</a></code> </p> |
| </td> |
| <td><p>Apache Arrow data types</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="DataType.html">DataType</a></code> </p> |
| </td> |
| <td><p>class arrow::DataType</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="DictionaryType.html">DictionaryType</a></code> </p> |
| </td> |
| <td><p>class DictionaryType</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="FixedWidthType.html">FixedWidthType</a></code> </p> |
| </td> |
| <td><p>class arrow::FixedWidthType</p></td> |
| </tr> |
| </tbody><tbody> |
| <tr> |
| <th colspan="2"> |
| <h2 id="section-flight" class="hasAnchor"><a href="#section-flight" class="anchor"></a>Flight</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
| |
| |
| </tbody><tbody> |
| |
| |
| <tr> |
| |
| <td> |
| <p><code><a href="load_flight_server.html">load_flight_server()</a></code> </p> |
| </td> |
| <td><p>Load a Python Flight server</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="flight_connect.html">flight_connect()</a></code> </p> |
| </td> |
| <td><p>Connect to a Flight server</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="flight_get.html">flight_get()</a></code> </p> |
| </td> |
| <td><p>Get data from a Flight server</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="flight_put.html">flight_put()</a></code> </p> |
| </td> |
| <td><p>Send data to a Flight server</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="list_flights.html">list_flights()</a></code> <code><a href="list_flights.html">flight_path_exists()</a></code> </p> |
| </td> |
| <td><p>See available resources on a Flight server</p></td> |
| </tr> |
| </tbody><tbody> |
| <tr> |
| <th colspan="2"> |
| <h2 id="section-file-systems" class="hasAnchor"><a href="#section-file-systems" class="anchor"></a>File systems</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
| |
| |
| </tbody><tbody> |
| |
| |
| <tr> |
| |
| <td> |
| <p><code><a href="s3_bucket.html">s3_bucket()</a></code> </p> |
| </td> |
| <td><p>Connect to an AWS S3 bucket</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="FileSystem.html">FileSystem</a></code> </p> |
| </td> |
| <td><p>FileSystem classes</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="FileInfo.html">FileInfo</a></code> </p> |
| </td> |
| <td><p>FileSystem entry info</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="FileSelector.html">FileSelector</a></code> </p> |
| </td> |
| <td><p>file selector</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="copy_files.html">copy_files()</a></code> </p> |
| </td> |
| <td><p>Copy files between FileSystems</p></td> |
| </tr> |
| </tbody><tbody> |
| <tr> |
| <th colspan="2"> |
| <h2 id="section-input-output" class="hasAnchor"><a href="#section-input-output" class="anchor"></a>Input/Output</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
| |
| |
| </tbody><tbody> |
| |
| |
| <tr> |
| |
| <td> |
| <p><code><a href="InputStream.html">InputStream</a></code> </p> |
| </td> |
| <td><p>InputStream classes</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="mmap_open.html">mmap_open()</a></code> </p> |
| </td> |
| <td><p>Open a memory mapped file</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="mmap_create.html">mmap_create()</a></code> </p> |
| </td> |
| <td><p>Create a new read/write memory mapped file of a given size</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="OutputStream.html">OutputStream</a></code> </p> |
| </td> |
| <td><p>OutputStream classes</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="Message.html">Message</a></code> </p> |
| </td> |
| <td><p>class arrow::Message</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="MessageReader.html">MessageReader</a></code> </p> |
| </td> |
| <td><p>class arrow::MessageReader</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="compression.html">compression</a></code> </p> |
| </td> |
| <td><p>Compressed stream classes</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="Codec.html">Codec</a></code> </p> |
| </td> |
| <td><p>Compression Codec class</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="codec_is_available.html">codec_is_available()</a></code> </p> |
| </td> |
| <td><p>Check whether a compression codec is available</p></td> |
| </tr> |
| </tbody><tbody> |
| <tr> |
| <th colspan="2"> |
| <h2 id="section-computation" class="hasAnchor"><a href="#section-computation" class="anchor"></a>Computation</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
| |
| |
| </tbody><tbody> |
| |
| |
| <tr> |
| |
| <td> |
| <p><code><a href="call_function.html">call_function()</a></code> </p> |
| </td> |
| <td><p>Call an Arrow compute function</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="match_arrow.html">match_arrow()</a></code> <code><a href="match_arrow.html">is_in()</a></code> </p> |
| </td> |
| <td><p><code>match</code> and <code>%in%</code> for Arrow objects</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="value_counts.html">value_counts()</a></code> </p> |
| </td> |
| <td><p><code>table</code> for Arrow objects</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="list_compute_functions.html">list_compute_functions()</a></code> </p> |
| </td> |
| <td><p>List available Arrow C++ compute functions</p></td> |
| </tr> |
| </tbody><tbody> |
| <tr> |
| <th colspan="2"> |
| <h2 id="section-configuration" class="hasAnchor"><a href="#section-configuration" class="anchor"></a>Configuration</h2> |
| <p class="section-desc"></p> |
| </th> |
| </tr> |
| |
| |
| </tbody><tbody> |
| |
| |
| <tr> |
| |
| <td> |
| <p><code><a href="arrow_info.html">arrow_info()</a></code> </p> |
| </td> |
| <td><p>Report information on the package's capabilities</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="cpu_count.html">cpu_count()</a></code> <code><a href="cpu_count.html">set_cpu_count()</a></code> </p> |
| </td> |
| <td><p>Manage the global CPU thread pool in libarrow</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="arrow_available.html">arrow_available()</a></code> <code><a href="arrow_available.html">arrow_with_dataset()</a></code> <code><a href="arrow_available.html">arrow_with_parquet()</a></code> <code><a href="arrow_available.html">arrow_with_s3()</a></code> </p> |
| </td> |
| <td><p>Is the C++ Arrow library available?</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="install_arrow.html">install_arrow()</a></code> </p> |
| </td> |
| <td><p>Install or upgrade the Arrow library</p></td> |
| </tr><tr> |
| |
| <td> |
| <p><code><a href="install_pyarrow.html">install_pyarrow()</a></code> </p> |
| </td> |
| <td><p>Install pyarrow for use with reticulate</p></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| |
| <div class="col-md-3 hidden-xs hidden-sm" id="pkgdown-sidebar"> |
| <nav id="toc" data-toggle="toc" class="sticky-top"> |
| <h2 data-toc-skip>Contents</h2> |
| </nav> |
| </div> |
| </div> |
| |
| |
| <footer> |
| <div class="copyright"> |
| <p>Developed by Neal Richardson, Ian Cook, Jonathan Keane, Romain François, Jeroen Ooms, Apache Arrow.</p> |
| </div> |
| |
| <div class="pkgdown"> |
| <p>Site built with <a href="https://pkgdown.r-lib.org/">pkgdown</a> 1.6.1.</p> |
| </div> |
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