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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Megan
December 16, 2008 07:54PM
Hi rick.

Resampling one dataset to match that of the other was exactly the problem. So thank you. But now I seem to be having a different problem. When I use the 3dcalc command below the alignment of my created mask isn't quite right.

3dcalc -a ${subj}_Whitematter.nii -b ${subj}-PFC-dorsal-mask+acpc -expr 'a*b' -prefix ${subj}-PFC-dorsal


I am guessing this has to do with the fact that my PFC-mask is an acpc mask while the Whitematter mask is a nifti file, and not acpc. When I look at the whitematter mask in afni I can switch it to acpc aligned view. Is there any other way to speficify to use the acpc aligned information in the whitematter.nii file when doing 3dcalc, or is my only option to convert my .nii file to brik and .head and then do 3dcalc?

Thanks,
Megan
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Subject Author Posted

3dcalc error

Megan December 16, 2008 01:46PM

Re: 3dcalc error

rick reynolds December 16, 2008 03:48PM

Re: 3dcalc error

Megan December 16, 2008 07:54PM

Re: 3dcalc error

rick reynolds December 17, 2008 09:33AM

Re: 3dcalc error

Megan Herting December 17, 2008 11:24AM