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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Fernanda Ponce
April 07, 2023 12:51PM
Dear all,

I have been trying to use the `3dClusterize` tool on a simple Nifti file, but every time I run it I get a different amount of clusters.
I currently use the `3dClusterize` command to get an output file with the clusters using different labels, and then use `3dcalc` to separate each cluster into a different Nifti file. My question is, is there a reason why I am getting a specific amount of clusters? Is it related to the algorithm used to cluster?
Also, when setting threshold values with the `-within_range` flag, I get fewer clusters than, say, other available software. Do you might know why this could be happening?
Thanks in advance: looking forward to hearing from you!

Best,
Fernanda
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Subject Author Posted

3DClusterize gives different number of clusters

Fernanda Ponce April 07, 2023 12:51PM

Re: 3DClusterize gives different number of clusters

ptaylor April 07, 2023 04:47PM