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

History of AFNI updates  

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February 14, 2023 09:20PM
Hi, Giuseppe-

How about taking the log10(...) of the dataset before 3dBrickStat:
3dcalc -a DSET -expr 'log10(a)' -prefix DSET_LOG10

3dBrickStat -perclist 1 100 -perc_quiet DSET_LOG10
? That will just transform your range from [1.2326e-32, 5.58214e-07] -> [-31.90917784, -6.25319928], but it should be a one-to-one mapping, hence fine? And exponentiation with 10**(...) will undo that?

When so many orders of magnitudes are being spanned with values, it seems nice to use logarithms, anyways.

--pt
Subject Author Posted

3dBrickStat percentile

gbarisano February 14, 2023 08:19PM

Re: 3dBrickStat percentile

ptaylor February 14, 2023 09:20PM

Re: 3dBrickStat percentile

gbarisano February 15, 2023 05:46PM