Dear Bruno,
> I have a short technical question concerning proportional
> scaling. As I understand it, for each scan a scalefactor
> is computed from all the data points greater than
> (global mean)/8. Later the user defined grand mean (e.g.
> 100) is divided by the scalefactor ending up in the VY struct.
>
> Can anyone tell me where the actual multiplication of the
> the scale factor in VY takes place? I had problems finding
> this spot in the spm maze and I want to be sure that I am
> not missing important scaling operations. Did I miss something
> so far?
I think the code you are after is in lines 499-512 of spm_fmri_spm.m. Darren is
quite right about the scaling being implemented via the VY.pinfo fields.
Cheers,
Matthew
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