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help > NBS Paired t-test
Oct 20, 2019 04:10 AM | Li-Ming Hsu - Department of Radiology and BRIC
NBS Paired t-test
Dear Andrew,
I have 13 subjects with two repeated measurements.
My design matrix is:
1 0 (subject1, time1)
1 0 (subject2, time1)
1 0 (subject3, time1)
0 1 (subject1, time2)
0 1 (subject2, time2)
0 1 (subject3, time2)
And my contrast is [-1 1] or [1 -1] for time2-time1 and time1-time2.
I also add the exchange block: [1:13 1:13]
I was wondering, is that corrected?
And I also check the matrix of 'nbs.NBS.test_stat', I feel the t-value matrix from NBS is quite different with the matrix I directly estimated from paired t-test.
Is there anything wrong?
Thanks for your help.
I have 13 subjects with two repeated measurements.
My design matrix is:
1 0 (subject1, time1)
1 0 (subject2, time1)
1 0 (subject3, time1)
0 1 (subject1, time2)
0 1 (subject2, time2)
0 1 (subject3, time2)
And my contrast is [-1 1] or [1 -1] for time2-time1 and time1-time2.
I also add the exchange block: [1:13 1:13]
I was wondering, is that corrected?
And I also check the matrix of 'nbs.NBS.test_stat', I feel the t-value matrix from NBS is quite different with the matrix I directly estimated from paired t-test.
Is there anything wrong?
Thanks for your help.
Threaded View
Title | Author | Date |
---|---|---|
Li-Ming Hsu | Oct 20, 2019 | |
Andrew Zalesky | Oct 21, 2019 | |
Li-Ming Hsu | Oct 21, 2019 | |