I don't know what the output directory holds. There used to be code in TestNaiveBayesClassifier that saved the confusion matrix to a separate file. This code has evaporated.
On Sun, Jul 29, 2012 at 3:17 PM, Sam Hodgson <[email protected]> wrote: > > Hi, > > Sorry to repost this but im completely stuck and I cant find anything on this > anywhere. > > I've tried running this on the known good 20-newsgroup example output data > and also on version 0.7 and get the same error. > > Any suggestions at all would be appreciated. > > Thanks > > Sam > > From: [email protected] > To: [email protected] > Subject: cmdump > Date: Thu, 26 Jul 2012 23:20:39 +0000 > > > > > > Hi, > > Im having some trouble getting a text output from the confusion matrix > created by testnb. Im running cmdump over part-m-00000 that was output by > test but getting the following error: > > bin/mahout cmdump -i spamfilter/test/part-m-00000 -o spamfilter/matrix/ -ow > --text > Running on hadoop, using /usr/bin/hadoop and HADOOP_CONF_DIR= > MAHOUT-JOB: > /root/svn/trunk/examples/target/mahout-examples-0.8-SNAPSHOT-job.jar > 12/07/27 00:10:10 WARN driver.MahoutDriver: No cmdump.props found on > classpath, will use command-line arguments only > 12/07/27 00:10:10 INFO common.AbstractJob: Command line arguments: > {--endPhase=[2147483647], --input=[spamfilter/test/part-m-00000], > --output=[spamfilter/matrix/], --overwrite=null, --startPhase=[0], > --tempDir=[temp], --text=null} > Exception in thread "main" java.io.IOException: wrong value class: > org.apache.mahout.math.MatrixWritable@6833f0de is not class > org.apache.mahout.math.VectorWritable > at org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1945) > at > org.apache.mahout.classifier.ConfusionMatrixDumper.readSeqFile(ConfusionMatrixDumper.java:230) > at > org.apache.mahout.classifier.ConfusionMatrixDumper.exportText(ConfusionMatrixDumper.java:169) > at > org.apache.mahout.classifier.ConfusionMatrixDumper.run(ConfusionMatrixDumper.java:155) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) > at > org.apache.mahout.classifier.ConfusionMatrixDumper.main(ConfusionMatrixDumper.java:134) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68) > at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139) > at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:195) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at org.apache.hadoop.util.RunJar.main(RunJar.java:197) > > > Any help would be greatly appreciated! > > Cheers > > Sam > -- Lance Norskog [email protected]
