[R] Odp: vector replacement 1/0 to P/A

[Petr PIKAL]

Hi
r-help-bounces at r-project.org napsal dne 17.08.2009 16:22:39:

> Hi,
> Can someone suggest an efficient way to substitute a vector/matrix
> which contains 1's and 0's to P's and A's (resp.)?

vec<-sample(0:1, 20, replace=T)
vec
 [1] 1 1 0 1 0 1 0 1 0 0 1 1 0 0 0 0 0 0 1 0
vec<-ifelse(vec==0, "A", "P")
vec
 [1] "P" "P" "A" "P" "A" "P" "A" "P" "A" "A" "P" "P" "A" "A" "A" "A" "A" 
"A" "P" "A"

Regards
Petr


> Thanks,
> Lana
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