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

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jiaxin
January 16, 2019 01:42AM
Hi Gang,
I have a question regarding how to use 3dttest or 3dttest++.

Each participant had a dataset with classification accuracy after I finished searchlight, but now I need to select voxels that their classification accuracy significantly higher than the chanve level (0.5) from every participant. I want to do the analysis of each participant, not a group analysis.


My script and Warning Message with 3dttest++:

3dttest++ -prefix FT_TF \
-singletonA '0.5' \
-setB 'searchlight24bg+tlrc'

++3dttest++: AFNI version=AFNI_18.3.15
++ -singletonA testing against fixed value=0.5
+ ==> option -BminusA is automatically turned on
++ option -setB:: processing as SHORT from(all values are datasets)
** FATAL ERROR: option -set B(short form): need at least 2 datasets or sub-bricks.


or 3dttest -prefix FT_TF \
-base1 '0.5' \
-set2 'searchlight24bg+tlrc'
** FATAL ERROR: option -set 2 doesn't have eough datasets.

Thanks a lot in advance.

-Xin
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Subject Author Posted

3dttest

jiaxin January 16, 2019 01:42AM

Re: 3dttest

gang January 16, 2019 08:16PM