AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

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March 22, 2005 12:01AM
good evening (morning?),
i'm wondering if there's an easy way to calculate standard error for a group averaged IRF. i was thinking i could use 3dcalc to calculate the standard deviation for each voxel (using the IRF from each subject as input), but then i'm not sure what to divide by to get the SEM.

My purpose is to get the SEM for the average timeseries within an ROI. The ROI was drawn on a group stat map and applied to the group avg IRF. Is there a simpler way?
thanks,
Subject Author Posted

standard error

jill March 22, 2005 12:01AM

Re: standard error

Robert Cox March 22, 2005 10:47AM

Re: standard error

Robert Cox March 22, 2005 11:10AM

Re: standard error

jill March 22, 2005 01:41PM

Re: standard error

Robert Cox March 22, 2005 02:09PM

Re: standard error

jill March 22, 2005 07:15PM

Re: standard error

Gang Chen March 22, 2005 11:56AM

Re: standard error

jill March 22, 2005 01:22PM

Re: standard error

Jim Eliassen March 24, 2005 11:29AM

Re: standard error

Gang Chen March 24, 2005 02:03PM