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help > RE: VBM analysis
Mar 30, 2020 09:03 AM | David Andre Barriere - Commissariat a l'energie atomique et aux energies alternatives
RE: VBM analysis
Originally posted by jw p:
I regularly used SPM to do VBM so it should works.
The error message return that there is NaN in priors, nevertheless, I removed them before to upload the dataset. Please could you tell me which priors (In vivo or ex vivo) you used ?
I also investigated your batch and I am not sure that you replaced the human GM, WM and CSF files by the rat ones (the name files are similar to human ones).
If the priors are correct, I suggest to you to :
- increase by 10 times the voxel size of the rat priors
- change affine regularisation in your batch as "No affine Registration"
- change biais regularisation in your batch as "no regularisation"
You could also used SPMmouse to use our tools (http://www.spmmouse.org/ or https://github.com/neurospin/spmmouse/bl...)
Do not hesitate to contact use again.
David
Hello.
I want to do VBM analysis using SPM12.
However, when performing segmentation analysis in SPM, the following problems occur:
"Warning: Matrix is singular, close to singular or badly scaled. Results may be
inaccurate. RCOND = NaN. "
The analysis stops with an error message.
Please see the attached segmentation batch file for advice.
If you are analyzing with another program, please recommend the program you used for analysis.
Thank you.
Hello jw p,I want to do VBM analysis using SPM12.
However, when performing segmentation analysis in SPM, the following problems occur:
"Warning: Matrix is singular, close to singular or badly scaled. Results may be
inaccurate. RCOND = NaN. "
The analysis stops with an error message.
Please see the attached segmentation batch file for advice.
If you are analyzing with another program, please recommend the program you used for analysis.
Thank you.
I regularly used SPM to do VBM so it should works.
The error message return that there is NaN in priors, nevertheless, I removed them before to upload the dataset. Please could you tell me which priors (In vivo or ex vivo) you used ?
I also investigated your batch and I am not sure that you replaced the human GM, WM and CSF files by the rat ones (the name files are similar to human ones).
If the priors are correct, I suggest to you to :
- increase by 10 times the voxel size of the rat priors
- change affine regularisation in your batch as "No affine Registration"
- change biais regularisation in your batch as "no regularisation"
You could also used SPMmouse to use our tools (http://www.spmmouse.org/ or https://github.com/neurospin/spmmouse/bl...)
Do not hesitate to contact use again.
David
Threaded View
| Title | Author | Date |
|---|---|---|
| jw p | Mar 11, 2020 | |
| David Andre Barriere | Apr 8, 2020 | |
| Nan Xu | Jun 29, 2020 | |
| David Andre Barriere | Oct 21, 2020 | |
| jw p | May 12, 2020 | |
| David Andre Barriere | May 23, 2020 | |
| David Andre Barriere | Mar 30, 2020 | |
| jw p | Mar 31, 2020 | |
| David Andre Barriere | Apr 4, 2020 | |