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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bob cox
November 15, 2003 09:12PM
The program sometimes has trouble with datasets whose values are spread out over a large range of numbers, as your datasets apparently are. One possibility would be to compress the range. This could be done with a simple 3dcalc command, as in
3dcalc -a rot23dbM+orig -expr '.01*a' -prefix rot23dbM_c -nscale
Scaling down by a factor of 100 (since your upper limit is about 32000) will make the histogram simpler, and that may help the program think. The program was originally written for datasets whose numerical ranges is a few hundreds, not tens of thousands. I suppose it should be patched -- but give this a try.

bob cox
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Subject Author Posted

3dIntracranial

Jodene November 15, 2003 01:25PM

Re: 3dIntracranial

bob cox November 15, 2003 09:12PM

Re: 3dIntracranial

Jodene November 19, 2003 08:33PM