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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paul.hamilton
February 03, 2016 12:54PM
Hi guruji,

I won't bore you with the details about how I got myself into this mess, but I'm wondering if there is a bootstrapping procedure written in AFN-ese? Given the variety of things that require bootstrapping, I wouldn't necessarily expect a full bootstrapping suite or anything, but perhaps a command that could be inserted into a shell script that does the hard part of randomly sampling with replacement from:
  • two n-length 1D arrays (easy).
  • an n-length 1D array and n 3D datasets (e.g., doing a voxel-wise correlation against a single behavioral variable).
  • n 3D datasets and another n 3D datasets (e.g., correlating T1 values against response coefficients, voxel-wise).

I appreciate that this is unwieldy and potentially gross--just checking before I start to port things into MATLAB as to whether a sufficient need for bootstrapping has emerged in the AFNI community.

Thanks!

Paul
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Subject Author Posted

3dBootstrap?

paul.hamilton February 03, 2016 12:54PM

Re: 3dBootstrap?

Colm Connolly February 03, 2016 01:42PM

Re: 3dBootstrap?

paul.hamilton February 04, 2016 05:39AM

Re: 3dBootstrap?

Bob Cox February 09, 2016 02:06PM