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<h2 title="Class GetPmfFromStringsSketch" class="title">Class GetPmfFromStringsSketch</h2>
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<pre>public class <span class="typeNameLabel">GetPmfFromStringsSketch</span>
extends org.apache.pig.EvalFunc&lt;org.apache.pig.data.Tuple&gt;</pre>
<div class="block">This UDF is to get an approximation to the Probability Mass Function (PMF) of the input stream
given a sketch and a set of split points - an array of <i>m</i> unique, monotonically increasing
values that divide the domain into <i>m+1</i> consecutive disjoint intervals.
The function returns an array of m+1 doubles each of which is an approximation to the fraction
of the input stream values that fell into one of those intervals. Intervals are inclusive of
the left split point and exclusive of the right split point.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../com/yahoo/sketches/pig/quantiles/GetPmfFromStringsSketch.html#GetPmfFromStringsSketch--">GetPmfFromStringsSketch</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>org.apache.pig.data.Tuple</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../com/yahoo/sketches/pig/quantiles/GetPmfFromStringsSketch.html#exec-org.apache.pig.data.Tuple-">exec</a></span>(org.apache.pig.data.Tuple&nbsp;input)</code>&nbsp;</td>
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<code>allowCompileTimeCalculation, finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, outputSchema, progress, setEndOfAllInput, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warn</code></li>
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<pre>public&nbsp;GetPmfFromStringsSketch()</pre>
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<pre>public&nbsp;org.apache.pig.data.Tuple&nbsp;exec(org.apache.pig.data.Tuple&nbsp;input)
throws <a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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