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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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hjr61547
August 25, 2021 06:39AM
Hello, afni experts

When I used 3dMVM to conduct a ANOVA analysis, an error message showed up:

[1] "Great, test run passed at voxel (55, 42, 31)!"
Error: $ operator is invalid for atomic vectors
Execution halted

My intention is to calculate the main effect of sleep stage (Wakefullness, N2, N3). As some sleep stage did not showed up in some subjects, we enlarge the data sample by combining two sleep subgroup (scan1,scan2), and considered the sleep stage as a between-subject variance. The main part of my 3dMVM script is attached here:

3dMVM -prefix MVM.maskHarv.noN1 -jobs 4 \
-bsVars 'sleepstage+scanner' \
-mask $maskdir/Harv_mask5_nobrainstem_grey_resam2.nii \
-SS_type 3 \
-num_glf 1 \
-glfLabel 1 sleepstage -glfCode 1 'sleepstage : 1*W -1*N2 & 1*W -1*N3 & 1*N2 -1*N3' \
-dataTable \
Subj scanner sleepstage InputFile \
ms7w scan1 W sleep_montreal.W.s7.nii \
ms9w scan1 W sleep_montreal.W.s9.nii \
ms15w scan1 W sleep_montreal.W.s15.nii \
ws2w scan2 W sleep_western.W.s2.nii \
ws5w scan2 W sleep_western.W.s5.nii \
ms7n2 scan1 N2 sleep_montreal.N2.s7.nii \
ms8n2 scan1 N2 sleep_montreal.N2.s8.nii \
ms9n2 scan1 N2 sleep_montreal.N2.s9.nii \
ms15n2 scan1 N2 sleep_montreal.N2.s15.nii \
ws35n2 scan2 N2 sleep_western.N2.s35.nii \
ws36n2 scan2 N2 sleep_western.N2.s36.nii \
ws42n2 scan2 N2 sleep_western.N2.s42.nii \
ws43n2 scan2 N2 sleep_western.N2.s43.nii \
ms7n3 scan1 N3 sleep_montreal.N3.s7.nii \
ms15n3 scan1 N3 sleep_montreal.N3.s15.nii \
ms16n3 scan1 N3 sleep_montreal.N3.s16.nii \
ms53n3 scan1 N3 sleep_montreal.N3.s53.nii \
ws33n3 scan2 N3 coactmap.sleep_western.N3.s33.nii \
ws34n3 scan2 N3 coactmap.sleep_western.N3.s34.nii \
ws36n3 scan2 N3 coactmap.sleep_western.N3.s36.nii \
ws41n3 scan2 N3 coactmap.sleep_western.N3.s41.nii
.......
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Subject Author Posted

3dMVM error

hjr61547 August 25, 2021 06:39AM

Re: 3dMVM error

gang August 26, 2021 07:59AM