On 2011-02-19 10:32, Hongwei Dong wrote:
Hi, R users,
I'm wondering if there a way in R I can select cases based on a probability
vector. if a case is selected, that case is marked as 1, otherwise, 0.
For example:
x<-12:18
y<-1:7
sample(x,2,replace=FALSE,y)
I got:
[1] 15 17
What I want to see is:
[1] 0 0 0 1 0 1 0
Maybe:
(x %in% sample(x,2,replace=FALSE,y)) * 1
Peter Ehlers
Thanks.
Gary
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