Using example data at: https://cwiki.apache.org/MAHOUT/spectral-clustering.html
0,0,0 0,1,0.8 0,2,0.5 1,0,0.8 1,1,0 1,2,0.9 2,0,0.5 2,1,0.9 2,2,0 Using 0.7 distribution. mahout spectralkmeans -i file:///Users/phubenig/affExGraph.txt -o file:///Users/phubenig/spectralEx -k 2 -d 3 -x 30 -cd 0.01 -ow 12/09/05 16:14:00 INFO mapred.JobClient: Combine output records=1 12/09/05 16:14:00 INFO mapred.JobClient: Reduce output records=1 12/09/05 16:14:00 INFO mapred.JobClient: Map output records=1 12/09/05 16:14:00 INFO lanczos.LanczosSolver: 2 passes through the corpus so far... Exception in thread "main" org.apache.mahout.math.IndexException: Index 2 is outside allowable range of [0,2) at org.apache.mahout.math.AbstractMatrix.set(AbstractMatrix.java:479) at org.apache.mahout.math.decomposer.lanczos.LanczosSolver.solve(LanczosSolver.java:132) at org.apache.mahout.math.hadoop.decomposer.DistributedLanczosSolver.runJob(DistributedLanczosSolver.java:73) at org.apache.mahout.clustering.spectral.kmeans.SpectralKMeansDriver.run(SpectralKMeansDriver.java:148) at org.apache.mahout.clustering.spectral.kmeans.SpectralKMeansDriver.run(SpectralKMeansDriver.java:86) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) at org.apache.mahout.clustering.spectral.kmeans.SpectralKMeansDriver.main(SpectralKMeansDriver.java:53) 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:156)
