Hi, I think that I know what you mean. So, if I want to get the result with A

B > C, I should get A > B and B > C, respectively. And then, to combine

these two results.

Would you tell me detail with step by step and what command I should type and how to type ? Or, have some reference to follow or to consult?

Thank you in advance!!

Feng-Xian

On Wed, 08 Jul 2009 15:28:44 -0400, Douglas N Greve wrote

You can't do that with a contrast matrix. In general, you can't test "ANDs" with a contrast, you have to test "ORs". For AND, you have to use a conjunction in which you make two contrasts A > B and B > C, threshold both (mri_binarize), then do a logical AND.

doug

Feng-Xian wrote:

...

Hi, I want to analysis three independence groups. And, I want to display a result of A group > B group > C group with positive(red) and A group < B group < C group with negative(blue). To show that, how do I write the

number

...

of columns in the contrast matrix?

Thank you in advance!

Feng-Xian

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