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 10, 2017 09:50AM
The problem has been solved. It had to do with differences in the implementation of thresholding in the clustering code and in the main AFNI GUI. The fix is explained below, in an excerpt from README.environment (as I edited it yesterday). However, you'll have to wait until we re-compile the binaries. I hope to remember to do that tonight, but my aging brain doesn't remember things as well as it once did :(


-------------------------------
Variable: AFNI_OLD_SHORT_THRESH
-------------------------------
When thresholding a dataset with a sub-brick that is stored as shorts (16 bit
integers), the AFNI GUI uses floats, but the 3dmerge and Clusterize functions
use shorts. The difference is that the user-supplied threshold in the latter
case is rounded to the nearest short. Thus, a threshold of 2.2 would become
2, and then a value of 2 would pass the 'greater than or equal to threshold'
test -- which is probably not what the user meant. Again, this would happen
in 3dmerge and Clusterize, but NOT in the AFNI GUI without Clusterize.
This inconsistency has been fixed, and both sets of places now threshold
using floats. However, IF you want to stick with the old method for some
un-imaginable reason, you need to set this variable to YES.
Subject Author Posted

Problems viewing conjunction analysis results

KendraS January 26, 2017 12:21PM

Re: Problems viewing conjunction analysis results

ptaylor January 26, 2017 02:22PM

Re: Problems viewing conjunction analysis results

KendraS January 26, 2017 04:48PM

Re: Problems viewing conjunction analysis results

rick reynolds January 26, 2017 02:29PM

Re: Problems viewing conjunction analysis results

KendraS January 26, 2017 04:53PM

Re: Problems viewing conjunction analysis results

Bob Cox January 26, 2017 02:33PM

Re: Problems viewing conjunction analysis results

KendraS January 26, 2017 05:37PM

Re: Problems viewing conjunction analysis results

rick reynolds February 06, 2017 05:54PM

Re: Problems viewing conjunction analysis results

KendraS February 07, 2017 01:22PM

Re: Problems viewing conjunction analysis results

Bob Cox February 07, 2017 02:52PM

Re: Problems viewing conjunction analysis results

KendraS February 07, 2017 03:04PM

Re: Problems viewing conjunction analysis results

gregoryrsl February 04, 2017 07:01PM

Re: Problems viewing conjunction analysis results

Bob Cox February 06, 2017 03:23PM

Re: Problems viewing conjunction analysis results

KendraS February 07, 2017 01:24PM

Re: Problems viewing conjunction analysis results

Bob Cox February 08, 2017 09:32AM

FIXED - Problems viewing conjunction analysis results

Bob Cox February 10, 2017 09:50AM

Re: FIXED - Problems viewing conjunction analysis results

KendraS February 16, 2017 10:36AM