org.apache.pig.piggybank.evaluation.math
Class EXP

java.lang.Object
  extended by org.apache.pig.EvalFunc<Double>
      extended by org.apache.pig.piggybank.evaluation.math.Base
          extended by org.apache.pig.piggybank.evaluation.math.DoubleBase
              extended by org.apache.pig.piggybank.evaluation.math.EXP

public class EXP
extends DoubleBase

math.EXP implements a binding to the Java function Math.exp(double). Given a single data atom it Returns the Euler's number e raised to the power of input

Parameters:
value - Double.
Return Value:
Double
Return Schema:
exp_inputSchema
Example:
register math.jar;
A = load 'mydata' using PigStorage() as ( float1 );
B = foreach A generate float1, math.exp(float1);

Author:
ajay garg
See Also:
Math.exp(double),

Field Summary
 
Fields inherited from class org.apache.pig.EvalFunc
log, pigLogger, reporter, returnType
 
Constructor Summary
EXP()
           
 
Method Summary
 
Methods inherited from class org.apache.pig.piggybank.evaluation.math.DoubleBase
exec, getArgToFuncMapping
 
Methods inherited from class org.apache.pig.piggybank.evaluation.math.Base
outputSchema
 
Methods inherited from class org.apache.pig.EvalFunc
finish, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, isAsynchronous, progress, setPigLogger, setReporter, warn
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

EXP

public EXP()


Copyright © ${year} The Apache Software Foundation