Hi all,
i've been trying to perform a dual regression across three groups and the following message keeps on popping up. I thought my design matrix was fine but apparently not. I was hoping for some advice.
The matrix only has 3 EVs as the three groups are all age and sex matched.
Group1 has 18 members, Group2 has 32, Group3 has 22 members.
EV1 = 18 ones followed by 54 zeroes
EV2 = 18 zeros; 32 ones and 22 zeroes
EV3 = 50 zeroes and 22 ones.
It makes the mean of the first EV then comes up with the following message for the mean of the second..
Starting permutation 2
Warning: tfce has detected a large number of integral steps. This operation may require a great deal of time to complete.
Any help would be greatly appreciated,
Tim
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