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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rick reynolds
November 23, 2019 06:41PM
Hi Pete,

Actually, 3dttest++ can indeed handle this, but there has to be the same number of values per location (the datasets themselves cannot be sparse). For locations with missing data, specify the value as zero. Then use 3dttest++ -zskip to skip those zero values (so each location would have varying degrees of freedom, hence the automatic application of -toz).

As Paul noted, 3dMEMA is a possibility, but then you would need the first level t-stats, if you have them.

- rick
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Subject Author Posted

One-sample T-test with unequal number of samples per voxel

pmlauro November 14, 2019 12:17PM

Re: One-sample T-test with unequal number of samples per voxel

pmlauro November 14, 2019 12:22PM

Re: One-sample T-test with unequal number of samples per voxel

ptaylor November 14, 2019 07:04PM

Re: One-sample T-test with unequal number of samples per voxel

rick reynolds November 23, 2019 06:41PM