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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
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Thanks for your comments.
For your 1st comment, I totally agree. I am just playing around your MME method. I would feed Z-score in the LME as my formal ICC calculation result.
For your 2nd comment on the Z-score normalization, I do think normalizing with 1/sqrt(N-3) is a real "normalization". Since after the Fisher Z-score conversion from Pearson correlation, this normalization wou
by
Xiaowei Song
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AFNI Message Board
Thanks very much for your reply.
-------------------------------------------------------
> Xiaowei,
>
> > I used the z-value of the Pearson correlation as
> the weight info to check the ICC of correlation
> maps.
>
> Are you using both correlation coefficients and
> their Z-values as input for 3dICC with the latter
> under the option -tStat?
>
Yes
by
Xiaowei Song
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AFNI Message Board
Thanks for the confirmation.
I was just curious on using your MME method by replacing the unknown variance with some sort of weighting/precision (such as the T-map used in your example) prior info.
As for my data, they are resting fMRI, no task. I used the z-value of the Pearson correlation as the weight info to check the ICC of correlation maps.
The MME result seems meaningful (i.e., simil
by
Xiaowei Song
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AFNI Message Board
Dear Dr. Gang Chen,
I guess I am running into a trivial bug related to the calculation of MME in your paper: Chen, G., Taylor, P.A., Haller, S.P., Kircanski, K., Stoddard, J., Pine, D.S., Leibenluft, E., Brotman, M.A., Cox, R.W., 2018. Intraclass correlation: Improved modeling approaches and applications for neuroimaging. Human brain mapping 39, 1187–1206.
The small bug is in the 757th line
by
Xiaowei Song
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AFNI Message Board