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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Vincent Costa
May 30, 2006 11:11AM
I used 3dTstat to generate a BRIK containing the mean of each voxel for a time series. The datum type of this output according to 3dinfo is float.

However the datum type of the timeseries file I want to scale is short, with no scalar attached (scanner values).

Will the following 3dcalc command work? Or do I need to convert one these files so that they are of the same type?

3dcalc -a TIMESERIES_file+orig -b MEAN_file+orig -expr '((a-b)/b)' -prefix BLAH+orig

Vinny
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3dcalc Conversion to Float

Vincent Costa May 30, 2006 11:11AM

Re: 3dcalc Conversion to Float

rick reynolds May 30, 2006 12:15PM

Re: 3dcalc Conversion to Float

Vincent Costa May 30, 2006 12:27PM