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Hi Philip,

Almost... keep the current design as you have (i.e., with the rows to be ignored filled with zeros), but also add, for each such row, one extra EV. This extra EV should be filled with zeros, except for the row that is to be ignored, in which you can put 1 (or any other non-zero value).

Then adjust the contrasts with more zeros corresponding to these extra EVs.

Hope this helps.

All the best,

Anderson

2015-01-16 3:52 GMT+00:00 Philip Baldwin <[log in to unmask]>:

Hi,

I am trying to create a design matrix for TBSS in the step before the randomise step.
I want to use different contrasts at some point, so I would rather not alter the
files with the image data. Am I able to use rows with zeros (so that the image
data is not used in that particular analysis)?

Below is my file.mat

Thank you in advance, Philip Baldwin

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

> more All33.mat

/NumWaves 14
/NumPoints 33
/PPheights 2 1 1 1 1 1 1 1 1 1 1 1 1 1

/Matrix
0 0 0 0 0 0 0 0 0 0 0 0 0 0
-1 1 0 0 0 0 0 0 0 0 0 0 0 0
-1 0 1 0 0 0 0 0 0 0 0 0 0 0
-1 0 0 1 0 0 0 0 0 0 0 0 0 0
-1 0 0 0 1 0 0 0 0 0 0 0 0 0
-1 0 0 0 0 1 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 0 0 0 0 1 0 0 0 0 0 0 0 0
1 0 1 0 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 0 0 0 0 0
1 0 0 0 1 0 0 0 0 0 0 0 0 0
1 0 0 1 0 0 0 0 0 0 0 0 0 0
-1 0 0 0 0 0 0 0 0 0 1 0 0 0
-1 0 0 0 0 0 0 0 0 0 0 1 0 0
-1 0 0 0 0 0 0 0 0 0 0 0 1 0
-1 0 0 0 0 0 1 0 0 0 0 0 0 0
-1 0 0 0 0 0 0 1 0 0 0 0 0 0
-1 0 0 0 0 0 0 0 0 0 0 0 0 1
-1 0 0 0 0 0 0 0 1 0 0 0 0 0
-1 0 0 0 0 0 0 0 0 1 0 0 0 0
1 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 1 0 0 0 0 0 0
1 0 0 0 0 0 1 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0 0 1 0 0 0
1 0 0 0 0 0 0 0 0 0 0 0 1 0
1 0 0 0 0 0 0 0 0 1 0 0 0 0
1 0 0 0 0 0 0 0 0 0 0 1 0 0
1 0 0 0 0 0 0 0 1 0 0 0 0 0
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