Hi if I am correct you want to know the number of documents by reading frequency.file-0; You can use the SequenceFileReader to load the frequency file and then count the number of keys that will give you the number of documents. Hope this helps, Thanks, vaibhav
On Tue, Jul 29, 2014 at 10:32 PM, Jonathan Cooper-Ellis <j...@ziftr.com> wrote: > Hey guys, > > I'm trying to make a Bayesian classifier, but I'm having a hard time > figuring out how to programatically determine the value of the numDocs > param for calculate method in TFIDF, using the files generated building the > model on the command line. > > I saw some code that did it like this: > > int numDocs = documentFrequency.get(-1).intValue(); > > Where documentFrequency is a HashMap<Integer,Long> read from > frequency.file-0, but there's no key -1 in the file so its giving me an NPE > when I try to pass that to tfidf.calculate. > > Anyone know what I'm doing wrong? > > > Best, > > jce > -- Thanks and Regards, Vaibhav Srivastava Email-id: vaibhavcs...@gmail.com Mobile no.: 9552543029
