Thanks Yaroslav, however what concerns me the most is the initial output of data summary with the number of targets per chunk, those numbers seem non sense, as there are 588 trials there are not 14406 targets per chunk? thanks!
>>> print alldata.summary() Dataset: 588x6@float64, <sa: chunks,targets> stats: mean=nan std=nan var=nan min=nan max=nan Counts of targets in each chunk: chunks\targets 1 2 --- --- 0 14406 14406 1 14406 14406 2 14406 14406 3 14406 14406 4 14406 14406 5 14406 14406 6 14406 14406 7 14406 14406 8 14406 14406 9 14406 14406 10 14406 14406 11 14406 14406 Summary for targets across chunks targets mean std min max #chunks 1 1.44e+04 0 1.44e+04 1.44e+04 12 2 1.44e+04 0 1.44e+04 1.44e+04 12 Summary for chunks across targets chunks mean std min max #targets 0 1.44e+04 0 1.44e+04 1.44e+04 2 1 1.44e+04 0 1.44e+04 1.44e+04 2 2 1.44e+04 0 1.44e+04 1.44e+04 2 3 1.44e+04 0 1.44e+04 1.44e+04 2 4 1.44e+04 0 1.44e+04 1.44e+04 2 5 1.44e+04 0 1.44e+04 1.44e+04 2 6 1.44e+04 0 1.44e+04 1.44e+04 2 7 1.44e+04 0 1.44e+04 1.44e+04 2 8 1.44e+04 0 1.44e+04 1.44e+04 2 9 1.44e+04 0 1.44e+04 1.44e+04 2 10 1.44e+04 0 1.44e+04 1.44e+04 2 11 1.44e+04 0 1.44e+04 1.44e+04 2 Sequence statistics for 588 entries from set [1, 2] Counter-balance table for orders up to 2: Targets/Order O1 | O2 | 1: 163 130 | 142 151 | 2: 130 164 | 150 143 | Correlations: min=-0.13 max=0.12 mean=-0.0017 sum(abs)=21 ----- Original Message ----- From: "Yaroslav Halchenko" <deb...@onerussian.com> To: "Development and support of PyMVPA" <pkg-exppsy-pymvpa@lists.alioth.debian.org> Sent: Monday, April 10, 2017 3:33:52 AM Subject: Re: [pymvpa] dataset issue On Mon, 10 Apr 2017, David Soto wrote: > HI, I am trying to create a dataset comprised of vectors of behavioural > data for classification > It all seems OK but when I check the output summary() the counts of > targets in each chunk is not right (total should be around 590) > however the > Sequence statistics for 588 entries from set [1, 2] seems fine? > Counter-balance table for orders up to 2: > Targets/Order O1 | O2 | > 1: 163 130 | 142 151 | > 2: 130 164 | 150 143 | you have 11 chunks you can't estimate O1 for the first trial 588-1 = 587 for O1 which matches 163+130+130+164, similarly for O2 -- two trials are dropped and you have 586 > There may be something going on in the way I prepare the dataset. -- Yaroslav O. Halchenko Center for Open Neuroscience http://centerforopenneuroscience.org Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755 Phone: +1 (603) 646-9834 Fax: +1 (603) 646-1419 WWW: http://www.linkedin.com/in/yarik _______________________________________________ Pkg-ExpPsy-PyMVPA mailing list Pkg-ExpPsy-PyMVPA@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-exppsy-pymvpa _______________________________________________ Pkg-ExpPsy-PyMVPA mailing list Pkg-ExpPsy-PyMVPA@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-exppsy-pymvpa