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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.datasketches.quantilescommon</a></div> |
| <h2 title="Interface QuantilesDoublesAPI" class="title">Interface QuantilesDoublesAPI</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><code><a href="QuantilesAPI.html" title="interface in org.apache.datasketches.quantilescommon">QuantilesAPI</a></code></dd> |
| </dl> |
| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="../quantiles/CompactDoublesSketch.html" title="class in org.apache.datasketches.quantiles">CompactDoublesSketch</a></code>, <code><a href="../quantiles/DoublesSketch.html" title="class in org.apache.datasketches.quantiles">DoublesSketch</a></code>, <code><a href="../kll/KllDoublesSketch.html" title="class in org.apache.datasketches.kll">KllDoublesSketch</a></code>, <code><a href="../quantiles/UpdateDoublesSketch.html" title="class in org.apache.datasketches.quantiles">UpdateDoublesSketch</a></code></dd> |
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| <hr> |
| <pre>public interface <span class="typeNameLabel">QuantilesDoublesAPI</span> |
| extends <a href="QuantilesAPI.html" title="interface in org.apache.datasketches.quantilescommon">QuantilesAPI</a></pre> |
| <div class="block">The Quantiles API for item type <i>double</i>.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Author:</span></dt> |
| <dd>Lee Rhodes</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="QuantilesAPI.html" title="interface in org.apache.datasketches.quantilescommon"><code>QuantilesAPI</code></a></dd> |
| </dl> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Interface</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon">QuantilesDoublesAPI.DoublesPartitionBoundaries</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">This encapsulates the essential information needed to construct actual partitions and is returned from the |
| <i>getPartitionBoundaries(int, QuantileSearchCritera)</i> method.</div> |
| </td> |
| </tr> |
| </table> |
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| </ul> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>default double[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCDF(double%5B%5D)">getCDF</a></span>​(double[] splitPoints)</code></th> |
| <td class="colLast"> |
| <div class="block">This is equivalent to <a href="#getCDF(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getCDF(splitPoints, INCLUSIVE)</code></a></div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>double[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCDF(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)">getCDF</a></span>​(double[] splitPoints, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns an approximation to the Cumulative Distribution Function (CDF) of the input stream |
| as a monotonically increasing array of double ranks (or cumulative probabilities) on the interval [0.0, 1.0], |
| given a set of splitPoints.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMaxItem()">getMaxItem</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the maximum item of the stream.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMinItem()">getMinItem</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the minimum item of the stream.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>default <a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon">QuantilesDoublesAPI.DoublesPartitionBoundaries</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPartitionBoundaries(int)">getPartitionBoundaries</a></span>​(int numEquallyWeighted)</code></th> |
| <td class="colLast"> |
| <div class="block">This method returns an instance of <a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon"><code>DoublesPartitionBoundaries</code></a> which provides |
| sufficient information for the user to create the given number of equally weighted partitions.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon">QuantilesDoublesAPI.DoublesPartitionBoundaries</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPartitionBoundaries(int,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)">getPartitionBoundaries</a></span>​(int numEquallyWeighted, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</code></th> |
| <td class="colLast"> |
| <div class="block">This method returns an instance of <a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon"><code>DoublesPartitionBoundaries</code></a> which provides |
| sufficient information for the user to create the given number of equally weighted partitions.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>default double[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPMF(double%5B%5D)">getPMF</a></span>​(double[] splitPoints)</code></th> |
| <td class="colLast"> |
| <div class="block">This is equivalent to <a href="#getPMF(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getPMF(splitPoints, INCLUSIVE)</code></a></div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>double[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPMF(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)">getPMF</a></span>​(double[] splitPoints, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns an approximation to the Probability Mass Function (PMF) of the input stream |
| as an array of probability masses as doubles on the interval [0.0, 1.0], |
| given a set of splitPoints.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>default double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getQuantile(double)">getQuantile</a></span>​(double rank)</code></th> |
| <td class="colLast"> |
| <div class="block">This is equivalent to <a href="#getQuantile(double,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getQuantile(rank, INCLUSIVE)</code></a></div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getQuantile(double,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)">getQuantile</a></span>​(double rank, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the approximate quantile of the given normalized rank and the given search criterion.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getQuantileLowerBound(double)">getQuantileLowerBound</a></span>​(double rank)</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the lower bound of the quantile confidence interval in which the quantile of the |
| given rank exists.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>default double[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getQuantiles(double%5B%5D)">getQuantiles</a></span>​(double[] ranks)</code></th> |
| <td class="colLast"> |
| <div class="block">This is equivalent to <a href="#getQuantiles(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getQuantiles(ranks, INCLUSIVE)</code></a></div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>double[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getQuantiles(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)">getQuantiles</a></span>​(double[] ranks, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</code></th> |
| <td class="colLast"> |
| <div class="block">Gets an array of quantiles from the given array of normalized ranks.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getQuantileUpperBound(double)">getQuantileUpperBound</a></span>​(double rank)</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the upper bound of the quantile confidence interval in which the true quantile of the |
| given rank exists.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>default double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRank(double)">getRank</a></span>​(double quantile)</code></th> |
| <td class="colLast"> |
| <div class="block">This is equivalent to <a href="#getRank(double,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getRank(quantile, INCLUSIVE)</code></a></div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRank(double,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)">getRank</a></span>​(double quantile, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the normalized rank corresponding to the given a quantile.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>default double[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRanks(double%5B%5D)">getRanks</a></span>​(double[] quantiles)</code></th> |
| <td class="colLast"> |
| <div class="block">This is equivalent to <a href="#getRanks(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getRanks(quantiles, INCLUSIVE)</code></a></div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>double[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRanks(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)">getRanks</a></span>​(double[] quantiles, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</code></th> |
| <td class="colLast"> |
| <div class="block">Gets an array of normalized ranks corresponding to the given array of quantiles and the given |
| search criterion.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSerializedSizeBytes()">getSerializedSizeBytes</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the current number of bytes this Sketch would require if serialized.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code><a href="DoublesSortedView.html" title="interface in org.apache.datasketches.quantilescommon">DoublesSortedView</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSortedView()">getSortedView</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the sorted view of this sketch</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code><a href="QuantilesDoublesSketchIterator.html" title="interface in org.apache.datasketches.quantilescommon">QuantilesDoublesSketchIterator</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#iterator()">iterator</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Gets the iterator for this sketch, which is not sorted.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toByteArray()">toByteArray</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a byte array representation of this sketch.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#update(double)">update</a></span>​(double item)</code></th> |
| <td class="colLast"> |
| <div class="block">Updates this sketch with the given item.</div> |
| </td> |
| </tr> |
| </table> |
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| <!-- --> |
| </a> |
| <h3>Methods inherited from interface org.apache.datasketches.quantilescommon.<a href="QuantilesAPI.html" title="interface in org.apache.datasketches.quantilescommon">QuantilesAPI</a></h3> |
| <code><a href="QuantilesAPI.html#getK()">getK</a>, <a href="QuantilesAPI.html#getN()">getN</a>, <a href="QuantilesAPI.html#getNumRetained()">getNumRetained</a>, <a href="QuantilesAPI.html#getRankLowerBound(double)">getRankLowerBound</a>, <a href="QuantilesAPI.html#getRankUpperBound(double)">getRankUpperBound</a>, <a href="QuantilesAPI.html#hasMemory()">hasMemory</a>, <a href="QuantilesAPI.html#isDirect()">isDirect</a>, <a href="QuantilesAPI.html#isEmpty()">isEmpty</a>, <a href="QuantilesAPI.html#isEstimationMode()">isEstimationMode</a>, <a href="QuantilesAPI.html#isReadOnly()">isReadOnly</a>, <a href="QuantilesAPI.html#reset()">reset</a>, <a href="QuantilesAPI.html#toString()">toString</a></code></li> |
| </ul> |
| </li> |
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| </section> |
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| <a id="getCDF(double[])"> |
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| <h4>getCDF</h4> |
| <pre class="methodSignature">default double[] getCDF​(double[] splitPoints)</pre> |
| <div class="block">This is equivalent to <a href="#getCDF(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getCDF(splitPoints, INCLUSIVE)</code></a></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>splitPoints</code> - an array of <i>m</i> unique, monotonically increasing items.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a discrete CDF array of m+1 double ranks (or cumulative probabilities) on the interval [0.0, 1.0].</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getCDF(double[],org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"> |
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| <h4>getCDF</h4> |
| <pre class="methodSignature">double[] getCDF​(double[] splitPoints, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</pre> |
| <div class="block">Returns an approximation to the Cumulative Distribution Function (CDF) of the input stream |
| as a monotonically increasing array of double ranks (or cumulative probabilities) on the interval [0.0, 1.0], |
| given a set of splitPoints. |
| |
| <p>The resulting approximations have a probabilistic guarantee that can be obtained from the |
| getNormalizedRankError(false) function.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>splitPoints</code> - an array of <i>m</i> unique, monotonically increasing items |
| (of the same type as the input items) |
| that divide the item input domain into <i>m+1</i> overlapping intervals. |
| |
| <p>The start of each interval is below the lowest item retained by the sketch |
| corresponding to a zero rank or zero probability, and the end of the interval |
| is the rank or cumulative probability corresponding to the split point.</p> |
| |
| <p>The <i>(m+1)th</i> interval represents 100% of the distribution represented by the sketch |
| and consistent with the definition of a cumulative probability distribution, thus the <i>(m+1)th</i> |
| rank or probability in the returned array is always 1.0.</p> |
| |
| <p>If a split point exactly equals a retained item of the sketch and the search criterion is:</p> |
| |
| <ul> |
| <li>INCLUSIVE, the resulting cumulative probability will include that item.</li> |
| <li>EXCLUSIVE, the resulting cumulative probability will not include the weight of that split point.</li> |
| </ul> |
| |
| <p>It is not recommended to include either the minimum or maximum items of the input stream.</p></dd> |
| <dd><code>searchCrit</code> - the desired search criteria.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a discrete CDF array of m+1 double ranks (or cumulative probabilities) on the interval [0.0, 1.0].</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getMaxItem</h4> |
| <pre class="methodSignature">double getMaxItem()</pre> |
| <div class="block">Returns the maximum item of the stream. This is provided for convenience, but may be different from the largest |
| item retained by the sketch algorithm.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the maximum item of the stream</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
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| <h4>getMinItem</h4> |
| <pre class="methodSignature">double getMinItem()</pre> |
| <div class="block">Returns the minimum item of the stream. This is provided for convenience, but is distinct from the smallest |
| item retained by the sketch algorithm.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the minimum item of the stream</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getPartitionBoundaries(int)"> |
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| <h4>getPartitionBoundaries</h4> |
| <pre class="methodSignature">default <a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon">QuantilesDoublesAPI.DoublesPartitionBoundaries</a> getPartitionBoundaries​(int numEquallyWeighted)</pre> |
| <div class="block">This method returns an instance of <a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon"><code>DoublesPartitionBoundaries</code></a> which provides |
| sufficient information for the user to create the given number of equally weighted partitions. |
| |
| <p>This method is equivalent to |
| <a href="#getPartitionBoundaries(int,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getPartitionBoundaries(numEquallyWeighted, INCLUSIVE)</code></a>. |
| </p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>numEquallyWeighted</code> - an integer that specifies the number of equally weighted partitions between |
| <a href="#getMinItem()"><code>getMinItem()</code></a> and <a href="#getMaxItem()"><code>getMaxItem()</code></a>. |
| This must be a positive integer greater than zero. |
| <ul> |
| <li>A 1 will return: minItem, maxItem.</li> |
| <li>A 2 will return: minItem, median quantile, maxItem.</li> |
| <li>Etc.</li> |
| </ul></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an instance of <a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon"><code>DoublesPartitionBoundaries</code></a>.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if <i>numEquallyWeighted</i> is less than 1.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getPartitionBoundaries(int,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"> |
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| <h4>getPartitionBoundaries</h4> |
| <pre class="methodSignature"><a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon">QuantilesDoublesAPI.DoublesPartitionBoundaries</a> getPartitionBoundaries​(int numEquallyWeighted, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</pre> |
| <div class="block">This method returns an instance of <a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon"><code>DoublesPartitionBoundaries</code></a> which provides |
| sufficient information for the user to create the given number of equally weighted partitions.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>numEquallyWeighted</code> - an integer that specifies the number of equally weighted partitions between |
| <a href="#getMinItem()"><code>getMinItem()</code></a> and <a href="#getMaxItem()"><code>getMaxItem()</code></a>. |
| This must be a positive integer greater than zero. |
| <ul> |
| <li>A 1 will return: minItem, maxItem.</li> |
| <li>A 2 will return: minItem, median quantile, maxItem.</li> |
| <li>Etc.</li> |
| </ul></dd> |
| <dd><code>searchCrit</code> - If INCLUSIVE, all the returned quantiles are the upper boundaries of the equally weighted partitions |
| with the exception of the lowest returned quantile, which is the lowest boundary of the lowest ranked partition. |
| If EXCLUSIVE, all the returned quantiles are the lower boundaries of the equally weighted partitions |
| with the exception of the highest returned quantile, which is the upper boundary of the highest ranked partition.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an instance of <a href="QuantilesDoublesAPI.DoublesPartitionBoundaries.html" title="class in org.apache.datasketches.quantilescommon"><code>DoublesPartitionBoundaries</code></a>.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if <i>numEquallyWeighted</i> is less than 1.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getPMF(double[])"> |
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| <h4>getPMF</h4> |
| <pre class="methodSignature">default double[] getPMF​(double[] splitPoints)</pre> |
| <div class="block">This is equivalent to <a href="#getPMF(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getPMF(splitPoints, INCLUSIVE)</code></a></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>splitPoints</code> - an array of <i>m</i> unique, monotonically increasing items.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a PMF array of m+1 probability masses as doubles on the interval [0.0, 1.0].</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getPMF(double[],org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"> |
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| </a> |
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| <h4>getPMF</h4> |
| <pre class="methodSignature">double[] getPMF​(double[] splitPoints, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</pre> |
| <div class="block">Returns an approximation to the Probability Mass Function (PMF) of the input stream |
| as an array of probability masses as doubles on the interval [0.0, 1.0], |
| given a set of splitPoints. |
| |
| <p>The resulting approximations have a probabilistic guarantee that can be obtained from the |
| getNormalizedRankError(true) function.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>splitPoints</code> - an array of <i>m</i> unique, monotonically increasing items |
| (of the same type as the input items) |
| that divide the item input domain into <i>m+1</i> consecutive, non-overlapping intervals. |
| |
| <p>Each interval except for the end intervals starts with a split point and ends with the next split |
| point in sequence.</p> |
| |
| <p>The first interval starts below the lowest item retained by the sketch |
| corresponding to a zero rank or zero probability, and ends with the first split point</p> |
| |
| <p>The last <i>(m+1)th</i> interval starts with the last split point and ends after the last |
| item retained by the sketch corresponding to a rank or probability of 1.0. </p> |
| |
| <p>The sum of the probability masses of all <i>(m+1)</i> intervals is 1.0.</p> |
| |
| <p>If the search criterion is:</p> |
| |
| <ul> |
| <li>INCLUSIVE, and the upper split point of an interval equals an item retained by the sketch, the interval |
| will include that item. If the lower split point equals an item retained by the sketch, the interval will exclude |
| that item.</li> |
| <li>EXCLUSIVE, and the upper split point of an interval equals an item retained by the sketch, the interval |
| will exclude that item. If the lower split point equals an item retained by the sketch, the interval will include |
| that item.</li> |
| </ul> |
| |
| <p>It is not recommended to include either the minimum or maximum items of the input stream.</p></dd> |
| <dd><code>searchCrit</code> - the desired search criteria.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a PMF array of m+1 probability masses as doubles on the interval [0.0, 1.0].</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getQuantile(double)"> |
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| <h4>getQuantile</h4> |
| <pre class="methodSignature">default double getQuantile​(double rank)</pre> |
| <div class="block">This is equivalent to <a href="#getQuantile(double,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getQuantile(rank, INCLUSIVE)</code></a></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rank</code> - the given normalized rank, a double in the range [0.0, 1.0].</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the approximate quantile given the normalized rank.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getQuantile(double,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"> |
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| <h4>getQuantile</h4> |
| <pre class="methodSignature">double getQuantile​(double rank, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</pre> |
| <div class="block">Gets the approximate quantile of the given normalized rank and the given search criterion.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rank</code> - the given normalized rank, a double in the range [0.0, 1.0].</dd> |
| <dd><code>searchCrit</code> - If INCLUSIVE, the given rank includes all quantiles ≤ |
| the quantile directly corresponding to the given rank. |
| If EXCLUSIVE, he given rank includes all quantiles < |
| the quantile directly corresponding to the given rank.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the approximate quantile given the normalized rank.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon"><code>QuantileSearchCriteria</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getQuantileLowerBound(double)"> |
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| </a> |
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| <h4>getQuantileLowerBound</h4> |
| <pre class="methodSignature">double getQuantileLowerBound​(double rank)</pre> |
| <div class="block">Gets the lower bound of the quantile confidence interval in which the quantile of the |
| given rank exists. |
| |
| <p>Although it is possible to estimate the probability that the true quantile |
| exists within the quantile confidence interval specified by the upper and lower quantile bounds, |
| it is not possible to guarantee the width of the quantile confidence interval |
| as an additive or multiplicative percent of the true quantile.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rank</code> - the given normalized rank</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the lower bound of the quantile confidence interval in which the quantile of the |
| given rank exists.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getQuantileUpperBound(double)"> |
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| </a> |
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| <h4>getQuantileUpperBound</h4> |
| <pre class="methodSignature">double getQuantileUpperBound​(double rank)</pre> |
| <div class="block">Gets the upper bound of the quantile confidence interval in which the true quantile of the |
| given rank exists. |
| |
| <p>Although it is possible to estimate the probability that the true quantile |
| exists within the quantile confidence interval specified by the upper and lower quantile bounds, |
| it is not possible to guarantee the width of the quantile interval |
| as an additive or multiplicative percent of the true quantile.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rank</code> - the given normalized rank</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the upper bound of the quantile confidence interval in which the true quantile of the |
| given rank exists.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getQuantiles(double[])"> |
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| </a> |
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| <h4>getQuantiles</h4> |
| <pre class="methodSignature">default double[] getQuantiles​(double[] ranks)</pre> |
| <div class="block">This is equivalent to <a href="#getQuantiles(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getQuantiles(ranks, INCLUSIVE)</code></a></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>ranks</code> - the given array of normalized ranks, each of which must be |
| in the interval [0.0,1.0].</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an array of quantiles corresponding to the given array of normalized ranks.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getQuantiles(double[],org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"> |
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| </a> |
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| <h4>getQuantiles</h4> |
| <pre class="methodSignature">double[] getQuantiles​(double[] ranks, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</pre> |
| <div class="block">Gets an array of quantiles from the given array of normalized ranks.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>ranks</code> - the given array of normalized ranks, each of which must be |
| in the interval [0.0,1.0].</dd> |
| <dd><code>searchCrit</code> - if INCLUSIVE, the given ranks include all quantiles ≤ |
| the quantile directly corresponding to each rank.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an array of quantiles corresponding to the given array of normalized ranks.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon"><code>QuantileSearchCriteria</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getRank(double)"> |
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| </a> |
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| <h4>getRank</h4> |
| <pre class="methodSignature">default double getRank​(double quantile)</pre> |
| <div class="block">This is equivalent to <a href="#getRank(double,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getRank(quantile, INCLUSIVE)</code></a></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>quantile</code> - the given quantile</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the normalized rank corresponding to the given quantile</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getRank(double,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"> |
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| <h4>getRank</h4> |
| <pre class="methodSignature">double getRank​(double quantile, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</pre> |
| <div class="block">Gets the normalized rank corresponding to the given a quantile.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>quantile</code> - the given quantile</dd> |
| <dd><code>searchCrit</code> - if INCLUSIVE the given quantile is included into the rank.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the normalized rank corresponding to the given quantile</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon"><code>QuantileSearchCriteria</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getRanks(double[])"> |
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| <h4>getRanks</h4> |
| <pre class="methodSignature">default double[] getRanks​(double[] quantiles)</pre> |
| <div class="block">This is equivalent to <a href="#getRanks(double%5B%5D,org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"><code>getRanks(quantiles, INCLUSIVE)</code></a></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>quantiles</code> - the given array of quantiles</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an array of normalized ranks corresponding to the given array of quantiles.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getRanks(double[],org.apache.datasketches.quantilescommon.QuantileSearchCriteria)"> |
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| </a> |
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| <h4>getRanks</h4> |
| <pre class="methodSignature">double[] getRanks​(double[] quantiles, |
| <a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon">QuantileSearchCriteria</a> searchCrit)</pre> |
| <div class="block">Gets an array of normalized ranks corresponding to the given array of quantiles and the given |
| search criterion.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>quantiles</code> - the given array of quantiles</dd> |
| <dd><code>searchCrit</code> - if INCLUSIVE, the given quantiles include the rank directly corresponding to each quantile.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an array of normalized ranks corresponding to the given array of quantiles.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if sketch is empty.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="QuantileSearchCriteria.html" title="enum in org.apache.datasketches.quantilescommon"><code>QuantileSearchCriteria</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSerializedSizeBytes()"> |
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| </a> |
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| <h4>getSerializedSizeBytes</h4> |
| <pre class="methodSignature">int getSerializedSizeBytes()</pre> |
| <div class="block">Returns the current number of bytes this Sketch would require if serialized.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the number of bytes this sketch would require if serialized.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSortedView()"> |
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| </a> |
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| <h4>getSortedView</h4> |
| <pre class="methodSignature"><a href="DoublesSortedView.html" title="interface in org.apache.datasketches.quantilescommon">DoublesSortedView</a> getSortedView()</pre> |
| <div class="block">Gets the sorted view of this sketch</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the sorted view of this sketch</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="iterator()"> |
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| </a> |
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| <li class="blockList"> |
| <h4>iterator</h4> |
| <pre class="methodSignature"><a href="QuantilesDoublesSketchIterator.html" title="interface in org.apache.datasketches.quantilescommon">QuantilesDoublesSketchIterator</a> iterator()</pre> |
| <div class="block">Gets the iterator for this sketch, which is not sorted.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the iterator for this sketch</dd> |
| </dl> |
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| <h4>toByteArray</h4> |
| <pre class="methodSignature">byte[] toByteArray()</pre> |
| <div class="block">Returns a byte array representation of this sketch.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a byte array representation of this sketch.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="update(double)"> |
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| <h4>update</h4> |
| <pre class="methodSignature">void update​(double item)</pre> |
| <div class="block">Updates this sketch with the given item.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>item</code> - from a stream of quantiles. NaNs are ignored.</dd> |
| </dl> |
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