org.apache.datasketches.hive.quantiles

Class GetQuantileFromDoublesSketchUDF

java.lang.Object

org.apache.hadoop.hive.ql.exec.UDF

org.apache.datasketches.hive.quantiles.GetQuantileFromDoublesSketchUDF

public class GetQuantileFromDoublesSketchUDF
extends org.apache.hadoop.hive.ql.exec.UDF

Constructor Summary

Constructors

Constructor and Description
GetQuantileFromDoublesSketchUDF()

Method Summary

Modifier and Type	Method and Description
Double	evaluate(org.apache.hadoop.io.BytesWritable serializedSketch, double fraction) Returns a quantile value from a given sketch

Methods inherited from class org.apache.hadoop.hive.ql.exec.UDF

getRequiredFiles, getRequiredJars, getResolver, setResolver

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GetQuantileFromDoublesSketchUDF

public GetQuantileFromDoublesSketchUDF()

Method Detail

evaluate

public Double evaluate(org.apache.hadoop.io.BytesWritable serializedSketch,
                       double fraction)

Returns a quantile value from a given sketch

Parameters:

serializedSketch - serialized sketch

fraction - value from 0 to 1 inclusive

Returns:

quantile value