Hi, all.
I got a lot of help from the this mailing list, it save me a lot of
time. Here is my question.
x<-rep(c(2,3,4),20)
y<-sample(rep(c(0,1),30))
tr<-rep(c(1:5),6)
data1<-data.frame(x,y,tr)
data1<-data1[order(data1$tr),]
> data1 x y tr1 2 0 16 4 1 111 3 0 116 2 0 121 4 0 126 3 1 131 2 0
> 136 4 1 141 3 0 146 2 0 151 4 0 156 3 0 12 3 0 27 2 0 212 4 0
> 2.......
table(data1)
> table(data1), , tr = 1
yx 0 1 2 4 0 3 3 1 4 2 2
, , tr = 2
yx 0 1 2 3 1 3 3 1 4 2 2....
Question: How to get accumulate contingency table by variable "tr" in data1?
e.g. how to get the following results.
, , tr = 1
yx 0 1 2 4 0 3 3 1 4 2 2
, , tr = 2
yx 0 1 2 7 1 3 6 2 4 4 4...
Thank you for your help.
xj.
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