help
help > File name ordering for paired t-test
May 27, 2016 01:05 PM | Matt Sutterer
File name ordering for paired t-test
Hi,
I'm looking to run a paired t-test comparing network structure between two scans in a set of 12 participants. I've designated the file names in the format of sub001_time01, sub001_time02, sub002_time01, etc. I'm familiar with setting up the GLM matrix for this from FSL, but in that case, you can specify the exact order of your input files. With NBS, since you're only indicating the first subject's correlation matrix, I'm wondering how the program reads in the list of subjects, and if I need to set up my design matrix for may paired test so that it will alternate between time one and time two for each subject, e.g.:
[1 0 1
1 0 -1
0 1 1
0 1 -1]
instead of the way typically indicated in FSL or your help menu:
[1 0 1
0 1 1
1 0 -1
0 1 -1]
since presumably the program will read in subject 1 time 1, then subject 1 time 2, and alternate from there, instead of reading in all subjects at time 1, and then all subjects at time 2? Is that correct?
Thanks,
Matt
I'm looking to run a paired t-test comparing network structure between two scans in a set of 12 participants. I've designated the file names in the format of sub001_time01, sub001_time02, sub002_time01, etc. I'm familiar with setting up the GLM matrix for this from FSL, but in that case, you can specify the exact order of your input files. With NBS, since you're only indicating the first subject's correlation matrix, I'm wondering how the program reads in the list of subjects, and if I need to set up my design matrix for may paired test so that it will alternate between time one and time two for each subject, e.g.:
[1 0 1
1 0 -1
0 1 1
0 1 -1]
instead of the way typically indicated in FSL or your help menu:
[1 0 1
0 1 1
1 0 -1
0 1 -1]
since presumably the program will read in subject 1 time 1, then subject 1 time 2, and alternate from there, instead of reading in all subjects at time 1, and then all subjects at time 2? Is that correct?
Thanks,
Matt
Threaded View
Title | Author | Date |
---|---|---|
Matt Sutterer | May 27, 2016 | |
Andrew Zalesky | May 27, 2016 | |
Polona Pozeg | Apr 26, 2022 | |
Andrew Zalesky | Apr 27, 2022 | |
Sean Ma | Oct 25, 2017 | |
Andrew Zalesky | Oct 26, 2017 | |
Sean Ma | Oct 27, 2017 | |