[R] Splitting matrix into several small matrices
kathie
kathryn.lord2000 at gmail.com
Tue Jul 28 00:46:30 CEST 2009
Dear R users...
I need to split this matrix(or dataframe), for example,
z <- matrix(c(13,1,1,1,1,12,0,0,0,0,8,1,0,1,1,8,0,1,0,0,
10,1,1,1,1,3,0,1,0,0,3,1,0,1,1,6,1,1,1,1),8,5,byrow = T)
> z
[,1] [,2] [,3] [,4] [,5]
[1,] 13 1 1 1 1
[2,] 12 0 0 0 0
[3,] 8 1 0 1 1
[4,] 9 0 1 0 0
[5,] 10 1 1 1 1
[6,] 3 0 1 0 0
[7,] 3 1 0 1 1
[8,] 6 1 1 1 1
(actually, z matrix is big, about 1000*15 matrix)
to 4 matrices like this way,
#- 1st matrix--------------------------------------
13 1 1 1 1
10 1 1 1 1
6 1 1 1 1
#- 2nd matrix--------------------------------------
12 0 0 0 0
#- 3rd matrix--------------------------------------
8 1 0 1 1
3 1 0 1 1
#- 4th matrix--------------------------------------
9 0 1 0 0
3 0 1 0 0
Any comments will be greatly appreciated.
Kathryn Lord
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