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help > RE: how to write design matrix for permutation analysis
Mar 11, 2020 01:03 PM | li wenlong
RE: how to write design matrix for permutation analysis
Dear Dr. Spielberg,
Forgive my ignorance, I meet the same questions and cannot fully understand what you replied. So, can we give an example:
If the connectivity matrix is 90*90*5*2 , now we set a design matrices:
(5 subjects: sub1/sub2/sub3/sub4/sub5; 2 conditions: A/B )
we plan to compare A > B, should predictors be set like this?
predictors: 1 1 1 1 1
options: Contrasts
contrast: [1 0] (group is 1, intercept is 0)
A < B contrast: [-1 0]
What do these two columns represent? And how should I set the predictors and contrast to find the correction between A > B and scale score?
Best wishes,
Wenlong
Forgive my ignorance, I meet the same questions and cannot fully understand what you replied. So, can we give an example:
If the connectivity matrix is 90*90*5*2 , now we set a design matrices:
(5 subjects: sub1/sub2/sub3/sub4/sub5; 2 conditions: A/B )
we plan to compare A > B, should predictors be set like this?
predictors: 1 1 1 1 1
options: Contrasts
contrast: [1 0] (group is 1, intercept is 0)
A < B contrast: [-1 0]
What do these two columns represent? And how should I set the predictors and contrast to find the correction between A > B and scale score?
Best wishes,
Wenlong
Threaded View
Title | Author | Date |
---|---|---|
xiu ling | May 31, 2019 | |
Jeffrey Spielberg | Jun 3, 2019 | |
li wenlong | Mar 11, 2020 | |
Jeffrey Spielberg | Mar 12, 2020 | |