org.apache.mahout.math.stats.entropy
Class ConditionalEntropy

java.lang.Object
  extended by org.apache.hadoop.conf.Configured
      extended by org.apache.mahout.common.AbstractJob
          extended by org.apache.mahout.math.stats.entropy.ConditionalEntropy
All Implemented Interfaces:
org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

public final class ConditionalEntropy
extends AbstractJob

A Hadoop job to compute the conditional entropy H(Value|Key) for a sequence file.


Constructor Summary
ConditionalEntropy()
           
 
Method Summary
static void main(String[] args)
           
 int run(String[] args)
           
 
Methods inherited from class org.apache.mahout.common.AbstractJob
addFlag, addInputOption, addOption, addOption, addOption, addOption, addOutputOption, buildOption, getAnalyzerClassFromOption, getCLIOption, getCombinedTempPath, getGroup, getInputPath, getOption, getOption, getOutputPath, getOutputPath, getTempPath, getTempPath, hasOption, keyFor, maybePut, parseArguments, parseDirectories, prepareJob, prepareJob, prepareJob, setS3SafeCombinedInputPath, shouldRunNextPhase
 
Methods inherited from class org.apache.hadoop.conf.Configured
getConf, setConf
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.apache.hadoop.conf.Configurable
getConf, setConf
 

Constructor Detail

ConditionalEntropy

public ConditionalEntropy()
Method Detail

main

public static void main(String[] args)
                 throws Exception
Throws:
Exception

run

public int run(String[] args)
        throws IOException,
               ClassNotFoundException,
               InterruptedException
Throws:
IOException
ClassNotFoundException
InterruptedException


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