On Fri, Apr 12, 2013 at 8:42 AM, Dmitriy Lyubimov <dlie...@gmail.com> wrote:
> No,this is not right. > > I will explain later when i have a moment. > On Apr 12, 2013 8:08 AM, "Chirag Lakhani" <clakh...@zaloni.com> wrote: > >> I am having trouble understanding whether the following code is sufficient >> for running PCA >> >> I have a sequence file of dense vectors that I am calling and then I am >> trying to run the following code >> >> SSVDSolver pcaFactory = new SSVDSolver(conf, new Path(vectorsFolder), new >> Path(pcaOutput),18,5,3,10); >> >> >> pcaFactory.setPcaMeanPath(pcaFactory.getPcaMeanPath()); >> > ssvd solver doesn't compute pca mean -- it requires it. this line therefore achieves nothing SSVDCli.java computes PCA mean using DistributedRowMatrix and passes it over to SSVD Solver. This behavior is switched on by -pca option. See the SSVDCli code for details. -d >> pcaFactory.run(); >> >> >> Is this enough for PCA or does anyone have example code they are willing >> to >> share to see how PCA works using the SSVD solver. >> >
