Hi, if you set a threshold it is applied to each select stats image
_in the units of that image_ so if you are selecting a PE/COPE with %
turned on then the threshold needs to be in those units, not p-values.
Cheers.
On 13 Nov 2006, at 17:01, Sang Lee wrote:
> Dear FSL users,
>
> When using threshold in featquery for percent signal change in
> featquery,
> what is the unit of
> featquery?
>
> I am using cope files (to be more specific PEs in stats directory)
> and wo
> uld like to use 0.05 for the
> threshold.
>
> Would using -t 0.05 in the featquery command line, sounds correct?
> I forgot to mention that threshold that I am using (0.05) is a P
> value.
>
> So, I guess my question is: If I use stats/pe files with a mask
> with convert PE/COPE values to % option on, for threshold value,
> can I use 0.05?
------------------------------------------------------------------------
---
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
------------------------------------------------------------------------
---
|