Dear Jorge,
> I am stuck with an 'Out of memory' problem while estimating the parameters
> of a fMRI data set.
>
> The puzzling thing for me is that in the past I have succesfully estimated
> the parameters of design matrices of this very same size (3360x3360) and
> even larger.
> So something is different now and I can't figure out what. Perhaps
> somebody can give a tip. I have appended below the error message I get on
> screen. Maybe in that message there is a hint to my problem.
> >> ??? Error using ==> .*
> Out of memory. Type HELP MEMORY for your options.
>
> Error in ==> /usr/local/spm99/spm_SpUtil.m
> On line 470 ==> trRVRV = sum(sum(V.*V)) - 2*sum(sum(V.*MV)) +
> sum(sum(MV'.*MV));
>
I think the error will go away, if you update to spm99. As I understand
it from the comments in the revised spm_SpUtil.m v2.18, the trace is
there computed much more efficently with respect to computer memory.
Stefan
--
Stefan Kiebel
Functional Imaging Laboratory
Wellcome Dept. of Cognitive Neurology
12 Queen Square
WC1N 3BG London, UK
Tel.: +44-(0)20-7833-7478
FAX : -7813-1420
email: [log in to unmask]
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