Hi,
On 5 Jul 2009, at 14:26, Heather Urry wrote:
> Hi everyone,
>
> I'm working on a data set that has three analysis levels. The first
> level is
> the single-subject analysis (run). At the second level, I'm doing
> fixed
> effects averaging across runs for each subject (session). The third
> level
> will be the random effects analysis across subjects (group).
>
> Once I've run the second level analysis for a given subject, can I
> completely erase the first level directories before running the third
> (highest) level analysis?
Yes, that's fine - though of course you should be absolutely sure that
you are happy with their results (time series modelling,
registrations, etc.) before deleting them.
Cheers.
> I'm trying to conserve disk space but obviously I
> wouldn't want to delete directories that are still needed for the
> highest
> level analysis. Just not sure if the higher level analyses dip down
> into
> just one or all levels below...
>
> If I can't delete the entire first-level directories, having
> searched the
> archive, I understand that I can just delete reg_standard at the first
> level, and this would conserve quite a bit of space without removing
> the
> entire first level directory.
>
> Thanks in advance for your help!
>
> Best,
>
> Heather
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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