Hello everyone,

I have already been running a process for 3 conditions, but i would like to do this for 4 conditions.
On the last two colomns for the design matrix in 3 conditions, i followed this:
0 0 for 1st cond
1 0 for 2nd cond
0 1 for 3rd cond
and as contrast the following:
[0,0,0,0,0,0,0,0,0,0,0,1,1]

Can anyone help me with this situation for 4 conditions?
Thanks