Hi,
I started to use mahout. I have a problem about FileDataModel. When i use a
csv file that use non-numeric values, I get error like
09.Ara.2009 16:54:27 org.slf4j.impl.JCLLoggerAdapter info
INFO: Creating FileDataModel for file c:\input.csv
09.Ara.2009 16:54:27 org.slf4j.impl.JCLLoggerAdapter info
INFO: Reading file info...
Exception in thread "main" java.lang.NumberFormatException: For input
string: "SPTBY-1711"
at
java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Long.parseLong(Long.java:403)
at java.lang.Long.parseLong(Long.java:461)
at
org.apache.mahout.cf.taste.impl.model.file.FileDataModel.processLineWithoutID(FileDataModel.java:315)
at
org.apache.mahout.cf.taste.impl.model.file.FileDataModel.processFileWithoutID(FileDataModel.java:293)
at
org.apache.mahout.cf.taste.impl.model.file.FileDataModel.buildModel(FileDataModel.java:158)
at
org.apache.mahout.cf.taste.impl.model.file.FileDataModel.reload(FileDataModel.java:129)
at
org.apache.mahout.cf.taste.impl.model.file.FileDataModel.checkLoaded(FileDataModel.java:332)
at
org.apache.mahout.cf.taste.impl.model.file.FileDataModel.getNumItems(FileDataModel.java:372)
at TestMahout.main(TestMahout.java:21)
my input file like
5572,SPTBY-1711
5572,SPTBL-1711
5572,SPTKP-1711
5581,TDTBY-861
5581,TDTBL-861
and few source is
FileDataModel dataModel = new FileDataModel( new File("c:\\input.csv"));
System.out.println(dataModel.getNumItems());
what's the error.
thanks
