Dear All,
Would someone please help me with this?
Is it possible to edit the design matrix once it is
specified and estimated? What I mean is , for example, is it
possible to add/remove sessions, add/remove covariates, etc
without really having to redo the whole process? If this is
possible how does one do it?
Another question is more general. Is there any particular
reason as to why it is not possible to go back and make
corrections at most steps of the spm99b? Some times i
inadvertantly select the wrong/unintended choice (eg.
convolving with a gaussian low pass filter rather than the
hrf..) and then turns out that I do not know how to correct
this without havingto respesify the whole de-matrix from the
scratch... Any help in this regard?
Thank you so much.....
--
Priyantha Herath, MBBS
Division of Human Brain Research, tel: +46 (0)8 728 7298
Department of Neuroscience, +46 (0)8 728 7297
Karolinska Institute,
S 171 77 Stockholm, fax: +46 8 309045
Sweden.
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