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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July 11, 2009 11:13PM
Hi Steffen,

You could possibly just skip any iteration for which the maximum
is too big. But in order to be properly "random", it is not clear
to me how to apply a maximum rest duration, so the program has no
ability to do so. By properly random I mean the probability of
each permutation of rest/stimulus is the same.

I could add that ability if I broke the randomness requirement a
little, where rest exceeding a maximum is redistributed across
rest intervals that are below the maximum. So it would do things
the same as now as a first pass, and then if there is a maximum,
it would shift excess rest around.

Does this seem like what you would want?

We are talking about make_random_timing.py, aren't we? :)

- rick

Subject Author Posted

enhancing effectivity by 50000 iterations

Dorit April 27, 2009 12:18PM

Re: enhancing effectivity by 50000 iterations

rick reynolds April 27, 2009 12:56PM

Re: enhancing effectivity by 50000 iterations

Dorit April 28, 2009 02:26AM

Re: enhancing effectivity by 50000 iterations

rick reynolds April 28, 2009 09:18AM

Re: enhancing effectivity by 50000 iterations

Dorit April 30, 2009 02:54AM

command for max rest duration?

Steffen July 11, 2009 09:21PM

Re: command for max rest duration?

rick reynolds July 11, 2009 11:13PM

Re: command for max rest duration?

Steffen July 12, 2009 12:14PM

Re: command for max rest duration?

Steffen July 13, 2009 05:12PM

Re: command for max rest duration?

rick reynolds July 13, 2009 05:34PM

Re: command for max rest duration?

rick reynolds July 14, 2009 01:46PM