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help > RE: running parallel analyses with different scrubbing parameters?
Apr 10, 2019 11:04 AM | Alfonso Nieto-Castanon - Boston University
RE: running parallel analyses with different scrubbing parameters?
Hi Emily,
That is a good point. One alternative, if you are using the latest release, is, after preprocessing your data normally, to create a new scrubbing covariate "manually" by doing the following:
1) in Setup.CovariatesFirstLevel select the menu option named "covariate tools. compute new/derived first-level covariates", and there click on "compute scrubbing"
2) in the next menu, select your new / alternative threshold options, and also change the "name of output covariate" field from "scrubbing" to "scrubbing2"
That will create a new set of scrubbing covariate files named "scrubbing2_art_regression_*.mat" (without overwriting your original files named "scrubbing_art_regression_*.mat") and also add that as a new first-level covariate named "scrubbing2" to your CONN project. You could then set up your two projects to use either one of those two sets of covariate files for denoising and be run in parallel without interference.
Hope this helps
Alfonso
Originally posted by Emily Stern:
That is a good point. One alternative, if you are using the latest release, is, after preprocessing your data normally, to create a new scrubbing covariate "manually" by doing the following:
1) in Setup.CovariatesFirstLevel select the menu option named "covariate tools. compute new/derived first-level covariates", and there click on "compute scrubbing"
2) in the next menu, select your new / alternative threshold options, and also change the "name of output covariate" field from "scrubbing" to "scrubbing2"
That will create a new set of scrubbing covariate files named "scrubbing2_art_regression_*.mat" (without overwriting your original files named "scrubbing_art_regression_*.mat") and also add that as a new first-level covariate named "scrubbing2" to your CONN project. You could then set up your two projects to use either one of those two sets of covariate files for denoising and be run in parallel without interference.
Hope this helps
Alfonso
Originally posted by Emily Stern:
Hi Conn gurus:
I want to run two full analyses (through second level) trying out both the intermediate and conservative scrubbing parameters offered in the preprocessing pipeline (using art). I was prepared to setup two different .mat files with their associated folders in order to run scrubbing and the remaining steps separately and in parallel. But it occurs to me now that the scrubbing procedures work by creating new art-related files directly in the subject functional data folder, and if I first run scrubbing with one threshold (e.g. intermediate) and proceed with analysis, and then move to a different .mat file to run a new threshold (e.g. conservative), this will overwrite the art files in the subject's functional folder and thus may interfere with the first (e.g. intermediate threshold) analysis being run.
To your knowledge is there any solution other than creating two copies of my subject functional folders in order to use one copy for one scrubbing setup and the other for the other scrubbing setup?
Thanks for any advice!
Emily
I want to run two full analyses (through second level) trying out both the intermediate and conservative scrubbing parameters offered in the preprocessing pipeline (using art). I was prepared to setup two different .mat files with their associated folders in order to run scrubbing and the remaining steps separately and in parallel. But it occurs to me now that the scrubbing procedures work by creating new art-related files directly in the subject functional data folder, and if I first run scrubbing with one threshold (e.g. intermediate) and proceed with analysis, and then move to a different .mat file to run a new threshold (e.g. conservative), this will overwrite the art files in the subject's functional folder and thus may interfere with the first (e.g. intermediate threshold) analysis being run.
To your knowledge is there any solution other than creating two copies of my subject functional folders in order to use one copy for one scrubbing setup and the other for the other scrubbing setup?
Thanks for any advice!
Emily
Threaded View
Title | Author | Date |
---|---|---|
Emily Stern | Mar 29, 2019 | |
Alfonso Nieto-Castanon | Apr 10, 2019 | |