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我对K均值聚类使用Mahout命令，输入文件为 “ KMeansData.csv”，数据的格式如下，ClassCastException：org.apache.hadoop.io.Text无法转换为K-均值聚类中的org.apache.hadoop.io.IntWritable Mahout
John,M,30,Pepsi,US
Jack,M,25,Coke,US
David,M,34,Pepsi,UK
Ted,M,37,Limca,CAN
Robert,M,23,Limca,US
Adrian,M,31,Pepsi,US
Craig,M,37,Coke,UK
Katie,F,23,Limca,UK
Nancy,F,32,Pepsi,UK
我能够顺利地完成下面的步骤，他们是，
./mahout seqdirectory -i /root/Mahout/Clustering/ -o /root/Mahout/temp/parsedtext-seqdir -c UTF-8 -chunk 1
./mahout seq2sparse -i /root/Mahout/temp/parsedtext-seqdir -o /root/Mahout/temp/parsedtext-seqdir-sparse-kmeans --maxDFPercent 85 --namedVector
./mahout kmeans -i /root/Mahout/temp/parsedtext-seqdir-sparse-kmeans/tfidf-vectors/ -c /root/Mahout/temp/parsedtext-kmeans-clusters -o /root/Mahout/reuters21578/root/Mahout/temp/parsedtext-kmeans -dm org.apache.mahout.common.distance.CosineDistanceMeasure -x 10 -k 5 -ow --clustering -cl
但是当我使用clustedump：
./mahout clusterdump -i /root/Mahout/temp/parsedtext-kmeans-clusters -d /root/Mahout/temp/parsedtext-seqdir-sparse-kmeans/dictionary.file-0 -dt sequencefile -b 100 -n 20 --evaluate -dm org.apache.mahout.common.distance.CosineDistanceMeasure --pointsDir /root/Mahout/temp/parsedtext-kmeans-clusters -o /root/Mahout/temp/cluster-output.txt
它给了我下面的错误，
Exception in thread "main" java.lang.ClassCastException: org.apache.hadoop.io.Text cannot be cast to org.apache.hadoop.io.IntWritable
at org.apache.mahout.utils.clustering.ClusterDumper.readPoints(ClusterDumper.java:298)
at org.apache.mahout.utils.clustering.ClusterDumper.init(ClusterDumper.java:245)
at org.apache.mahout.utils.clustering.ClusterDumper.run(ClusterDumper.java:152)
at org.apache.mahout.utils.clustering.ClusterDumper.main(ClusterDumper.java:102)
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)
可以对如何消除这种误差，使用命令，我没有任何Java程序在这里，我可以调整人的想法。