Nick,
Thanks for looking into this - we are stalled in our analysis until we
find a way around this!
The answer to your question is no - I have tried the command in cuzco (via
ssh), ai (directly), and inv (directly), and I receive the glibc error on
all of them. If you think it would be a good i
Ok, but my automatic procedure constructed the ROI
masks on the lh.sphere (not on lh.sphere.reg)of the
fsaverage subject.
Is it wrong to compute the area of a ROI in the
fsaverage spherical surface by adding the areas of the
triangular faces inside this region? (The area of each
triangular face be
> When you do the p->t conversion, are you assuming a two-sided t?
You may have spotted my silly user error...
> Do you
> want to try the --synth option (it's a lot easier when you *know* they
> should be t).
Yes.
Thanks for your suggestions!
+glenn
>
>
>
> [EMAIL PROTECTED] wrote:
>
>>Actuall
Sorry, I don't think there is. It is a little bit easier to manage with
isxconcat-sess.
Dan Dillon wrote:
Dear FreeSurfers,
I have two groups (patients vs. controls) whose data I'd like to
compare using intergroupavg-sess. Here's the problem: I ran identical
analyses on the two groups, b
When you do the p->t conversion, are you assuming a two-sided t? Do you
want to try the --synth option (it's a lot easier when you *know* they
should be t).
[EMAIL PROTECTED] wrote:
Actually, it is an excellent question, and gets at the heart of my
research-- rather than saying all bets a
Actually, it is an excellent question, and gets at the heart of my
research-- rather than saying all bets are off, using the skew of the
t-values to gauge the effect (or number of hypothesis/vertices where we
have an effect).
My big problem is that I can't investigate the distribution of the
t-val
This might seem like an odd question, but why do you expect the t values
to be t-distributed? Remember, they will only be t-distributed under the
null. If you have an effect, and I assume you do, then all bets are off.
Try doing the same thing with synthetic guassian noise (mri_glmfit will
do t
Hi,
I'm seeing some odd behavior in t-values and p-values exported from
FreeSurfer. In geeky detail:
fit a linear model using FreeSurfer, saving t and p-values
convert output files to ascii
load ascii files into R
convert the FreeSurfer "p-values" into real p-values via
lh.pval <- 10^(-1*abs(free
Tommi,
Do you have a machine on which this script can run without the glibc
error? I have been able to recreate the error you see in a debugger on
inv, but can't figure out what is going wrong. (Doug, the glibc error
occurs when fclose is called on line 565 of mriFunctionalDataAccess.c).
Doug or
