Hi
This is due to there only being 2 subjects so that an F across the
subject domain is not sensible. The current version in FSL 4.1
switches the F comparison off if there are only two data points.
hth
Christian
On 13 Aug 2008, at 18:56, Francis Loayza wrote:
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>
>
> sorry, I forgot the subject!!
>
> From: [log in to unmask]
> To: [log in to unmask]
> Subject:
> Date: Wed, 13 Aug 2008 17:00:13 +0000
>
>
> Hi FSL users,
> I’m running an ICA analysis with Melodic only for 1 subject and 2
> sessions, pseudo-random event-related design. When I perform in the
> tab STATS (multi-session temporal concatenation), the log report
> shows:
> Sorting IC maps
> DOF cannot be zero or negative" …..
> Fdtr, stdtr, ndtri, domain error …..
> The report doesn’t shows any components!
>
> If I change the Multi-session temporal concatenation to Multi-
> session tensor-ICA, the process works well!
>
> My first idea was ram memory. I already changed up to ~2.8 Gb for
> centos5 in the shared memory of VMware, but I can not solve the
> problem!
>
> Thanks in advance….
> francis
>
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