org.apache.pig.builtin
Class LOG

java.lang.Object
  extended by org.apache.pig.EvalFunc<Double>
      extended by org.apache.pig.builtin.Base
          extended by org.apache.pig.builtin.DoubleBase
              extended by org.apache.pig.builtin.LOG

public class LOG
extends DoubleBase

LOG implements a binding to the Java function Math.log(double). Given a single data atom it returns the natural logarithm (base e) of a double


Field Summary
 
Fields inherited from class org.apache.pig.EvalFunc
log, pigLogger, reporter, returnType
 
Constructor Summary
LOG()
           
 
Method Summary
 
Methods inherited from class org.apache.pig.builtin.DoubleBase
exec, getArgToFuncMapping
 
Methods inherited from class org.apache.pig.builtin.Base
outputSchema
 
Methods inherited from class org.apache.pig.EvalFunc
finish, getCacheFiles, 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

LOG

public LOG()


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