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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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Thank you very much for this help! This has worked exactly as hoped.
I was using -input and wasn’t using -invert (an oversight on my part) or -nozero. I also found that if I adjusted frequencies by multiplying by my TR (2s) when using 1dBandpass, I could also bandpass my .1D file of regressors directly.
Given I adjust the frequencies properly, do 1dBandpass and 3dBandpass work equivalently?
by
willsnyder
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AFNI Message Board
An update to the post above:
I have found the command 1dBport, which does exactly this. However, it always seems to output sine/cosine regressors of one timepoint less than the number of volumes. Is there a way to make it match the number of volumes so I can perform a regression, or am I misinterpreting how to use these regressors?
Would it be appropriate to increase the number of volumes by
by
willsnyder
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AFNI Message Board
Hello AFNI experts,
I am interested in applying either a high pass or bandpass filter from afni in another program, and am wondering whether there is a way to save the design matrix (possibly a .1D file?) for this filter as a series of columns that can be regressed out of my timeseries in another software.
I would use AFNI’s 3dTproject, but I want to perform the “non-aggressive” denoising
by
willsnyder
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AFNI Message Board
Hi AFNI team,
I have a unique issue and I was wondering if I could have some guidance with how to approach it with AFNI's tools.
I am trying to create a probabilistic atlas of certain sulci I am interested in, and have been able to create NIFTI files with each subject's binary representation of the sulci (i.e. the location of the sulci have a voxel value of 1). From here, the next s
by
willsnyder
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AFNI Message Board
Thank you so much for that thourough response!
The as long as subtracting the resultant ROIs from my original ROIs gives all zeros, both of these methods should lead me to the same end data in the Sleuth application. I'll be trying both out soon, and I very much appreciate the help.
Thanks again,
Will Snyder
by
willsnyder
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AFNI Message Board
Hello AFNI Team,
I am trying to input ROI data from an experiment into the Sleuth application from the Brainmap database. My only issue is that the irregular ROI has too many voxels for the Sleuth application to handle all at once. Could someone reccomend a solution on how to split my original ROI image into several (ideally 4) smaller ROI's that could be added to equal my original image?
by
willsnyder
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AFNI Message Board
Hi Rick,
This is the output I received:
-------------------------------- general ---------------------------------
architecture: 64bit
system: Darwin
release: 15.0.0
version: Darwin Kernel Version 15.0.0: Wed Aug 26 16:57:32 PDT 2015; root:xnu-3247.1.106~1/RELEASE_X86_64
distribution: 10.11 x86_64
number of CPUs: 4
appar
by
willsnyder
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AFNI Message Board
Hi,
I am attempting to use uber_subject.py on my Mac and after installing PyQt4 I am still having issues, and I believe it is due to an incorrect path. From other questions asked on this forum, I've noticed that when I type "which python" in terminal it should output "/sw/bin/python" and I have tried editing my ~/.bashrc , ~/.profile , and ~/.bash_profile files but I b
by
willsnyder
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AFNI Message Board