Sorry to bother everyone again with one question about array. I have
one data set saved in this way
patient time x1 x2 response
1 1 1 8 1
1 2 2 7 1
2 1 3 6 1
2 2 4 5 1
3 1 5 4 2
3 2 6 3 2
4 1 7 2 2
4 2 8 1 2
I am wondering if there is any easy way to change the data into an
array that 1st dimension is for variables (x1 and x2), 2nd is for
patients (I would like to call it replicates), 3rd is for time (2
and 1), 4th is for response (2 and 1). The resulted array would look
like as follows:
, , 1, 1
[,1] [,2]
[1,] 1 3
[2,] 8 6
, , 2, 1
[,1] [,2]
[1,] 2 4
[2,] 7 5
, , 1, 2
[,1] [,2]
[1,] 5 7
[2,] 4 2
, , 2, 2
[,1] [,2]
[1,] 6 8
[2,] 3 1
Thanks a lot,
Suyan
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