I don't think it discards them, probably just sets them to 0. Do you
have the proper number of frames in the mri_concat output?
On 05/06/2017 04:08 AM, Ladan Shahshahani wrote:
> Hi Doug,
> I asked you about how to perform group analysis on maps created using
> an index I calculated. You sugges
Hi Doug,
I asked you about how to perform group analysis on maps created using an
index I calculated. You suggested using mri_concat to concatenate the maps
and then perform the analysis using mri_glmfit.
I then asked about NaN values in the maps and how freesurfer treat these
values. You said "It
Hi Ladan, please include previous correspondence so that we know what
this is referring to
doug
On 5/5/17 1:58 AM, Ladan Shahshahani wrote:
It didn't crash. I got the following line in the terminal window:
Invalid argument
WARNING: 319 NaNs found in subjid.map.mgh
When the NaNs were commo
It didn't crash. I got the following line in the terminal window:
Invalid argument
WARNING: 319 NaNs found in subjid.map.mgh
When the NaNs were common in all the subjects, mri_glmfit did not end
successfully. After I omitted the common NaN values, there were still a few
subjects with NaN values
It will probably crash. I does nothing to find NaNs and handle them in
an appropraite way
On 5/2/17 7:37 AM, Ladan Shahshahani wrote:
Hi Douglas,
Thanks for the reply.
One more question, Qdec excludes subjects with NaN values, right? How
will mri_glmfit treat subjects with NaNs?
For each sub
Hi Douglas,
Thanks for the reply.
One more question, Qdec excludes subjects with NaN values, right? How will
mri_glmfit treat subjects with NaNs?
For each subject, there are some vertices with NaN values (These vertices
are not the same in all subjects).
Bests,
Ladan
_
If your index is in fsaverage space, then you can just concatenate the
data together with
mri_concat subj1/data-in-fsaverage.nii.gz subj2/data-in-fsaverage.nii.gz
... --o stack.nii.gz
then just input stack.nii.gz into mri_glmfit, etc
On 4/29/17 9:36 AM, Ladan Shahshahani wrote:
Dear expert
Dear experts,
I have preprocessed my functional data using FSFAST. I have calculated an
index for each of my ROIs' vertices in matlab, and then created a map for
each hemisphere and subcortical regions using MRIwrite.
I want to perform group analysis on these maps. I also want to apply
cluster-wis
