Hi,
I have a simple task, but I am looking for a clever and fast way to do it:
I have a vector x with 0,1 or 2 and I want to create another vector y with
the same length following the rules:
If the element in x is equal to 0, the element in y is equal to 0
If the element in x is equal to 2, the element in y is equal to 1
If the element in x is equal to 1, the element in y is either 0 or 1 (sample
from c(0,1))
thus the vector
> x
[,1]
[1,] 0
[2,] 2
[3,] 1
[4,] 2
[5,] 0
[6,] 1
[7,] 2
could produce the vector y (this is one of the possibilities since y|x=1 is
either 0 or 1
> y
[,1]
[1,] 0
[2,] 1
[3,] 1
[4,] 1
[5,] 0
[6,] 0
[7,] 1
I know how to do this using for loops but I was wondering if you guys could
suggest a better way
Thanks
--
View this message in context:
http://r.789695.n4.nabble.com/Faster-way-to-do-it-using-apply-tp3166161p3166161.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
