org.apache.mahout.classifier

Class ConfusionMatrixDumper

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.mahout.common.AbstractJob

org.apache.mahout.classifier.ConfusionMatrixDumper

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

public final class ConfusionMatrixDumper
extends AbstractJob

Export a ConfusionMatrix in various text formats: ToString version Grayscale HTML table Summary HTML table Table of counts all with optional HTML wrappers Input format: Hadoop SequenceFile with Text key and MatrixWritable value, 1 pair Intended to consume ConfusionMatrix SequenceFile output by Bayes TestClassifier class

Field Summary

Fields inherited from class org.apache.mahout.common.AbstractJob

argMap, inputFile, inputPath, outputFile, outputPath, tempPath

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(String[] args)
static void	printCountsTable(ConfusionMatrix cm, PrintStream out)
static void	printFooter(PrintStream out)
static void	printGrayTable(ConfusionMatrix cm, PrintStream out)
static void	printHeader(PrintStream out, CharSequence title)
static void	printSummaryTable(ConfusionMatrix cm, PrintStream out)
int	run(String[] args)

Methods inherited from class org.apache.mahout.common.AbstractJob

addFlag, addInputOption, addOption, addOption, addOption, addOption, addOutputOption, buildOption, buildOption, getAnalyzerClassFromOption, getCLIOption, getConf, getDimensions, getFloat, getFloat, getGroup, getInputFile, getInputPath, getInt, getInt, getOption, getOption, getOption, getOptions, getOutputFile, getOutputPath, getOutputPath, getTempPath, getTempPath, hasOption, keyFor, maybePut, parseArguments, parseArguments, parseDirectories, prepareJob, prepareJob, prepareJob, prepareJob, setConf, setS3SafeCombinedInputPath, shouldRunNextPhase

Methods inherited from class java.lang.Object

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

Method Detail

main

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

Throws:

Exception

run

public int run(String[] args)
        throws IOException

Throws:

IOException

printSummaryTable

public static void printSummaryTable(ConfusionMatrix cm,
                     PrintStream out)

printGrayTable

public static void printGrayTable(ConfusionMatrix cm,
                  PrintStream out)

printCountsTable

public static void printCountsTable(ConfusionMatrix cm,
                    PrintStream out)

printHeader

public static void printHeader(PrintStream out,
               CharSequence title)

printFooter

public static void printFooter(PrintStream out)