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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May 29, 2018 02:41PM
Thanks for the feedback!

To debug, we collapsed correct by contrasting the two values (errorCorrect-correct): 'Ext_t*ageatvisit+reward+meanmotion' as well as trying the suggested 'reward+Ext_t+ageatvisit+meanmotion' with MVM .
But both still fail the model test.


The datatable is on pastebin, if that is useful.

Ultimately we would like to model with missing values. Not all subjects came back for every visit. (50 for visit 3, 142 for 2, 168 for visit 1).

Here is our 3dMVM call without visit and with the input file as the difference score (contrast errorcorrect - correct for each reward type)

3dMVM -overwrite -prefix ../ncanda_scripts/ncanda_3dmvm_outputs/3dmvm_output_extxagexcor_continuous.nii.gz \
      -mask gm_50mask+tlrc \
      -model 'Ext_t+ageatvisit+reward+meanmotion' \
      -qVars "Ext_t,ageatvisit,meanmotion" \
      -ranEff '~1' \
      -jobs 8 \
      -SS_type 3 \
      -dataTable @datatable_3dlme_resp_diffscore2018524.txt

And it failed the model test:
Quote

Warning messages:
1: In process.MVM.opts(lop, verb = lop$verb) : NAs introduced by coercion
2: In process.MVM.opts(lop, verb = lop$verb) : NAs introduced by coercion
...
~~~~~~~~~~~~~~~~~~~ Model test failed! ~~~~~~~~~~~~~~~~~~~
Possible reasons:
....
** Error:
Quitting due to model test failure...
Subject Author Posted

3dlme model test fail

alq6 May 21, 2018 02:18PM

Re: 3dlme model test fail

gang May 21, 2018 04:21PM

Re: 3dlme model test fail

alq6 May 23, 2018 09:59AM

Re: 3dlme model test fail

gang May 23, 2018 03:35PM

Re: 3dlme model test fail

alq6 May 29, 2018 02:41PM

Re: 3dlme model test fail

gang May 30, 2018 05:30PM