org.apache.hadoop.hive.ql.udf
Class UDFLog

java.lang.Object
  org.apache.hadoop.hive.ql.exec.UDF
      org.apache.hadoop.hive.ql.udf.UDFLog

public class UDFLog
extends UDF

UDFLog.

Constructor Summary

UDFLog()

Method Summary

DoubleWritable	evaluate(DoubleWritable a) Returns the natural logarithm of "a".
DoubleWritable	evaluate(DoubleWritable base, DoubleWritable a) Returns the logarithm of "a" with base "base".

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

UDFLog

public UDFLog()

Method Detail

evaluate

public DoubleWritable evaluate(DoubleWritable a)

Returns the natural logarithm of "a".

evaluate

public DoubleWritable evaluate(DoubleWritable base,
                               DoubleWritable a)

Returns the logarithm of "a" with base "base".