Hi folks: I was helping a colleague perform a multivariate analysis of EEG data today and we ran into a missing splitter issue. Given that it's EEG there's no real need for chunks, like in fMRI runs, and we didn't want to run an NFoldSplitter-based cross validation (CV) because it would, quite possibly, take forever. Instead, we simply wanted to run a CV by splitting the data into 10 chunks (though we could try different numbers of splits).
I realize we could have set up custom dataset chunks ourselves or created a CustomSplitter, but what do folks think of extending the HalfSplitter into an NSplitter, where you specify how many pieces you want to split your data into. Obviously, providing N=2 would be identical to the HalfSplitter. But this would make it really easy to split your data into arbitrary numbers of equal-sized chunks. Do you think this is worthwhile and that there is nothing that already does this? If you think I should add it in, are you happy with the name NSplitter or do you have a better name? I'm open to all suggestions and comments. Thanks, Per _______________________________________________ Pkg-ExpPsy-PyMVPA mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/pkg-exppsy-pymvpa
