Dear all,
I have a matrix as follows:
a=matrix(c(1,2,3,1,2,3,1,2,3,6,5,7,7,5,7,5,6,5,"Y", "N","Y","Y","N","Y",
"N","Y","Y"),ncol=3)
> a
[,1] [,2] [,3]
[1,] "1" "6" "Y"
[2,] "2" "5" "N"
[3,] "3" "7" "Y"
[4,] "1" "7" "Y"
[5,] "2" "5" "N"
[6,] "3" "7" "Y"
[7,] "1" "5" "N"
[8,] "2" "6" "Y"
[9,] "3" "5" "Y"
[10,] "1" "5" "Y"
Here, the first two columns are considered as factors, the third columns
are values.
I want to categorize a[,3] based on a[,1] and a[,2], ie, I want to
create a table as:
1 2 3
5
Y 1 0 1
N 1 5 0
6
Y
.. ..
N .. .. ..
7
Y .. .. ..
N .. .. ..
I tried the CorssTable function, but it couldn't give what I want. I
just wonder is there any way/function that can do this job?
Thank you very much!
Cheers,
Jessie
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