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May 09, 2022 05:03AM
Thanks!

This was on a computer that I'm not managing, made them update the binaries and now it works! Thanks RIck!

I have a related question, I will try to make it clear - It might by difficult, haha.

Task: Run 3dMVM on a huge number of datasets. Getting the stats: No problem, it does them slice by slice. Problem: using the -resid option. It keeps all images (4D) in memory.

The solution: Use 3dZcutup and split the data into 9 stacks of about 10 slices each. Run 9 instances of 3dMVM and glue the stats and residuals together afterwards.

New Problem:
This works for all stacks apart from the most buttom and top ones (slices0-9) and slices 82-91) - Then I get the classic 3dMVM error where it suggests that the model might be wrong or the table might be wrongly formatted. This is run via a script and it works for all other stacks. My guess is that there are a lot of 0 voxels and very little brain at the top 10 and bottom 10 slcies.

If I increase the bottom and top stacks (e.g. merge stack0,1,2), then the stats work again - But I reach the breaking point of memory, it can't make the residuals.


My question:
If I my end goal is to the the stats + residuals for the bottom 10 slices. Can I make a "fake" dataset, containing 20 slices: first 10 are bottom slices that I'm interested in and the next 10 could be from the middle of the brain, just to trick MVM to think that the model/stats are correct?

Or does this screw up the residuals? Do they depend on the adjesent slices? If the residuals are independent of adjecent slices, then I can probably do this.

Thanks!
Subject Author Posted

3dMVM -residuals error

Robin November 06, 2021 03:05PM

Re: 3dMVM -residuals error

Gang November 08, 2021 03:57PM

Re: 3dMVM -residuals error

Robin November 12, 2021 05:12AM

Re: 3dMVM -residuals error

Gang November 15, 2021 10:09AM

Re: 3dMVM -residuals error

Robin November 16, 2021 05:38AM

Re: 3dMVM -residuals error

Gang November 16, 2021 08:14AM

Re: 3dMVM -residuals error

Robin May 04, 2022 07:39AM

Re: 3dMVM -residuals error

rick reynolds May 04, 2022 10:44AM

Re: 3dMVM -residuals error

Robin May 09, 2022 05:03AM

Re: 3dMVM -residuals error

Gang May 10, 2022 07:46AM

Re: 3dMVM -residuals error

Robin May 17, 2022 09:11AM

Re: 3dMVM -residuals error

Gang May 21, 2022 04:28PM

Re: 3dMVM -residuals error

Robin May 24, 2022 07:56AM

Re: 3dMVM -residuals error

Gang May 25, 2022 11:15AM



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