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<div class="subTitle">org.apache.ignite.ml.math.primitives.vector.storage</div>
<h2 title="Class SparseVectorStorage" class="title">Class SparseVectorStorage</h2>
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<pre>public class <span class="typeNameLabel">SparseVectorStorage</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/VectorStorage.html" title="interface in org.apache.ignite.ml.math.primitives.vector">VectorStorage</a>, <a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html" title="interface in org.apache.ignite.ml.math">StorageConstants</a></pre>
<div class="block">Sparse, local, on-heap vector storage.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../../serialized-form.html#org.apache.ignite.ml.math.primitives.vector.storage.SparseVectorStorage">Serialized Form</a></dd>
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<h3>Fields inherited from interface&nbsp;org.apache.ignite.ml.math.<a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html" title="interface in org.apache.ignite.ml.math">StorageConstants</a></h3>
<code><a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html#COLUMN_STORAGE_MODE">COLUMN_STORAGE_MODE</a>, <a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html#RANDOM_ACCESS_MODE">RANDOM_ACCESS_MODE</a>, <a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html#ROW_STORAGE_MODE">ROW_STORAGE_MODE</a>, <a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html#SEQUENTIAL_ACCESS_MODE">SEQUENTIAL_ACCESS_MODE</a>, <a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html#UNKNOWN_STORAGE_MODE">UNKNOWN_STORAGE_MODE</a></code></li>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#SparseVectorStorage--">SparseVectorStorage</a></span>()</code>&nbsp;</td>
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<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#SparseVectorStorage-int-">SparseVectorStorage</a></span>(int&nbsp;size)</code>&nbsp;</td>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#SparseVectorStorage-java.util.Map-boolean-">SparseVectorStorage</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span>&nbsp;map,
boolean&nbsp;cp)</code>&nbsp;</td>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>double[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#data--">data</a></span>()</code>
<div class="block">Gets underlying array if <a href="../../../../../../../../org/apache/ignite/ml/math/StorageOpsMetrics.html#isArrayBased--"><code>StorageOpsMetrics.isArrayBased()</code></a> returns <code>true</code> and all values
in vector are Numbers.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#equals-java.lang.Object-">equals</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;o)</code></td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#get-int-">get</a></span>(int&nbsp;i)</code>
<div class="block">Gets element from vector by index and cast it to double.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><span class='angle_bracket'>&lt;</span>T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span><br>T</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#getRaw-int-">getRaw</a></span>(int&nbsp;i)</code></td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#hashCode--">hashCode</a></span>()</code></td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>it.unimi.dsi.fastutil.ints.IntSet</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#indexes--">indexes</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#isArrayBased--">isArrayBased</a></span>()</code>
<div class="block">Checks if implementation is based on Java arrays.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#isDense--">isDense</a></span>()</code>
<div class="block">Checks if this implementation should be considered dense so that it explicitly
represents every value.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#isNumeric--">isNumeric</a></span>()</code></td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#rawData--">rawData</a></span>()</code></td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#readExternal-java.io.ObjectInput-">readExternal</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/ObjectInput.html?is-external=true" title="class or interface in java.io">ObjectInput</a>&nbsp;in)</code></td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#set-int-double-">set</a></span>(int&nbsp;i,
double&nbsp;v)</code></td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#setRaw-int-java.io.Serializable-">setRaw</a></span>(int&nbsp;i,
<a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>&nbsp;v)</code></td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#size--">size</a></span>()</code></td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/storage/SparseVectorStorage.html#writeExternal-java.io.ObjectOutput-">writeExternal</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/ObjectOutput.html?is-external=true" title="class or interface in java.io">ObjectOutput</a>&nbsp;out)</code></td>
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<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;org.apache.ignite.ml.math.<a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html" title="interface in org.apache.ignite.ml.math">StorageConstants</a></h3>
<code><a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html#assertAccessMode-int-">assertAccessMode</a>, <a href="../../../../../../../../org/apache/ignite/ml/math/StorageConstants.html#assertStorageMode-int-">assertStorageMode</a></code></li>
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<h4>SparseVectorStorage</h4>
<pre>public&nbsp;SparseVectorStorage()</pre>
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<h4>SparseVectorStorage</h4>
<pre>public&nbsp;SparseVectorStorage(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><span class='angle_bracket'>&lt;</span><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span>&nbsp;map,
boolean&nbsp;cp)</pre>
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<h4>SparseVectorStorage</h4>
<pre>public&nbsp;SparseVectorStorage(int&nbsp;size)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>size</code> - Vector size.</dd>
</dl>
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<a name="size--">
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<h4>size</h4>
<pre>public&nbsp;int&nbsp;size()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/VectorStorage.html#size--">size</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/VectorStorage.html" title="interface in org.apache.ignite.ml.math.primitives.vector">VectorStorage</a></code></dd>
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<h4>get</h4>
<pre>public&nbsp;double&nbsp;get(int&nbsp;i)</pre>
<div class="block">Gets element from vector by index and cast it to double.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/VectorStorage.html#get-int-">get</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/VectorStorage.html" title="interface in org.apache.ignite.ml.math.primitives.vector">VectorStorage</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>i</code> - Vector element index.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Value obtained for given element index.</dd>
</dl>
</li>
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<a name="getRaw-int-">
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<h4>getRaw</h4>
<pre>public&nbsp;<span class='angle_bracket'>&lt;</span>T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a><span class='angle_bracket'>&gt;</span>&nbsp;T&nbsp;getRaw(int&nbsp;i)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/VectorStorage.html#getRaw-int-">getRaw</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../org/apache/ignite/ml/math/primitives/vector/VectorStorage.html" title="interface in org.apache.ignite.ml.math.primitives.vector">VectorStorage</a></code></dd>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - Type of stored element in vector.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>i</code> - Vector element index.</dd>
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