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  

|
March 21, 2016 03:05PM
I'm getting an error when trying to run 3dDetrend on time series data. I got the following error:
++ 3dDetrend: AFNI version=AFNI_16.0.10 (Feb 25 2016) [64-bit]
*** Illegal inputs to startup_lsqfit
** FATAL ERROR: Choleski factorization fails: linearly dependent vectors!

this is my 3dDetrend call:
3dDetrend -polort 1 -prefix detrend_run1_101_RHead_Sub run1_101_RHead_Sub.1D


My input time series is one column. It looks like this. I'm not sure what the issue is.
Subject Author Posted

3dDetrend Illegal inputs to startup_lsqfit

mmontchal March 21, 2016 03:05PM

Re: 3dDetrend Illegal inputs to startup_lsqfit

rick reynolds March 21, 2016 03:19PM

Re: 3dDetrend Illegal inputs to startup_lsqfit

mmontchal March 21, 2016 03:23PM