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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Vincent Costa
February 06, 2008 04:24PM
Hi,

I'm using the model search function to evaluate the goodness of fit of a theoretical model. I was using the script Gang provides on the website and wondered what the purpose of setting the -limits function to exceed -1 1 serves (see below):

1dSEM -theta $minModel -C SEM_cov.1D -DF $DF -psi SEM_resvar.1D -tree_growth -limits -10 10
or
1dSEM -theta $minModel -C SEM_corr.1D -DF $DF -psi SEM_resvarcorr.1D -tree_growth -limits -1 1

I ask because the best model determined by the above commands returns path coefficients exceeding 1. It would make more intuitive sense if all values were between -1 and 1, however I'm unsure if reseting the limits would effect model computation. Is it simply a scaling issue?

Vinny
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Subject Author Posted

setting -limits value in 1dSEM

Vincent Costa February 06, 2008 04:24PM

Re: setting -limits value in 1dSEM

Gang Chen February 06, 2008 04:37PM

Re: setting -limits value in 1dSEM

Vincent Costa February 06, 2008 05:06PM