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
