I'm so interested in the discussion, I hope you are not bored!! ;) The output of line code you post is:
17.0 19.0 0.0 0.0 0.0 0.0 [and other couple of zeros!!] So I open file as NiftiImage and append every *.img in a list and then load into a NiftiDataset!!! RG 2011/3/29 Yaroslav Halchenko <[email protected]> > > On Tue, 29 Mar 2011, Roberto Guidotti wrote: > > I haven't only my images in Talairach space after basic preprocessing > > steps (time, motion correction etc.), when I load my dataset I print > > scl_* values > from an image or from a dataset? how do you load them into a dataset? > (as a list into a single dataset or as a list of datasets which you > concatenate in 0.4.7 or vstack in 0.6)? > > what would be the output if you just run below command on your .img/.hdr > files at question: > > for f in *.img; do python -c "import sys, nifti as n; > h=n.NiftiImage(sys.argv[1]).header; print h['scl_slope'], h['scl_inter']" > $f; done > > > and I have my first image with the values cited above, > > and the rest with 0.0 value. After loading I have to zscore my images > > and proceed with other mvpa steps. Am I wrong? > > you are doing everything correct -- I am just trying to infer if > you were were affected before by 'absent scaling' issue > > > So, I have upgraded to 0.6 version! > > cool -- there you should be all safe. if you are still interested we > could continue above discussion... or just forget -- up to you ;) > > -- > =------------------------------------------------------------------= > Keep in touch www.onerussian.com > Yaroslav Halchenko www.ohloh.net/accounts/yarikoptic > > _______________________________________________ > Pkg-ExpPsy-PyMVPA mailing list > [email protected] > http://lists.alioth.debian.org/mailman/listinfo/pkg-exppsy-pymvpa >
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