Turn off network measures in --action=ana

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Maxwell Bertolero

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Sep 21, 2022, 3:20:05 PMSep 21
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Would it be possible to have it be an option, or even the default, to not write out the network measures? I need to generate about 8000 connectivity matrices (running a searchlight type algorithm), so it would be great to call this function quickly, and only save out the connectivity.mat file.

Thanks!

Fang-Cheng Yeh

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Sep 21, 2022, 3:26:29 PMSep 21
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On Wed, Sep 21, 2022 at 3:20 PM Maxwell Bertolero <mbert...@gmail.com> wrote:
Would it be possible to have it be an option, or even the default, to not write out the network measures? I need to generate about 8000 connectivity matrices (running a searchlight type algorithm), so it would be great to call this function quickly, and only save out the connectivity.mat file.

Thanks!

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Max Bertolero

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Sep 21, 2022, 3:29:23 PMSep 21
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Thanks!! 

Will that work for both action=trk and action=ana? 

I like action=ana, as I can precompute the tracts, then make the matrix from a bunch of different parcellations. 

Thanks again,
Max Bertolero, PhD
Neuroinformatics Software Architect
Nous Imaging 

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Fang-Cheng Yeh

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Sep 21, 2022, 3:34:27 PMSep 21
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It should be, because the post-tracking pipeline is identical.

I would suggest using --action=trk and skipping tractography saving/loading by --output=no_file.

Frank

Max Bertolero

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Sep 21, 2022, 3:38:20 PMSep 21
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Ah, I thought I was saving time by running:

dsi_studio --action=trk --source={fib_file} --output={tract_output}

And then: 

dsi_studio --action=ana --source={fib_file} --tract={tract_output} --connectivity={connectivity} --connectivity_value=count --export=connectivity --output={output}
        
Are the tracts still recalculated in dsi_studio --action=ana if I pass a --tract?

Thanks so much,
Max Bertolero, PhD
Neuroinformatics Software Architect
Nous Imaging 

Fang-Cheng Yeh

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Sep 21, 2022, 3:46:41 PMSep 21
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It would be much faster by 

dsi_studio --action=trk --source={fib_file} --output=no_file --connectivity={connectivity} --connectivity_value=count --export=connectivity --connectivity_output=matrix

Max Bertolero

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Sep 21, 2022, 3:47:13 PMSep 21
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Sweet, thanks! 

Max Bertolero, PhD
Neuroinformatics Software Architect
Nous Imaging 

Fang-Cheng Yeh

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Sep 21, 2022, 3:54:06 PMSep 21
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BTW, you don't need --export=connectivity

Max Bertolero

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Sep 22, 2022, 12:40:13 PMSep 22
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This absolutely rips. Thanks so much Frank! 

Max Bertolero, PhD
Neuroinformatics Software Architect
Nous Imaging 
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