[R] transform 3 numeric vectors empty of 0/1

[David Carlson]

Try this

> set.seed(42)
> Vec1 <- sample(0:1, 15, replace=TRUE)
> Vec2 <- sample(0:1, 15, replace=TRUE)
> Vec3 <- sample(0:1, 15, replace=TRUE)
> paste0(ifelse(Vec1,"A",""), ifelse(Vec2,"B",""),
ifelse(Vec3,"C",""))
 [1] "ABC" "ABC" ""    "AC"  "AB"  "ABC" "A"   "B"   "ABC" "AC"  "B"
"A"  
[13] "AB"  "C"   "B"  

-------------------------------------
David L Carlson
Associate Professor of Anthropology
Texas A&M University
College Station, TX 77840-4352


-----Original Message-----
From: r-help-bounces at r-project.org
[mailto:r-help-bounces at r-project.org] On Behalf Of Arnaud Michel
Sent: Tuesday, June 18, 2013 11:58 AM
To: r-help at r-project.org
Subject: [R] transform 3 numeric vectors empty of 0/1

Dear all,
Without a loop, I would like transform 3 numeric vectors empty of
0/1 of 
same length
Vec1 : transform 1 to A and 0 to ""
Vec2 : transform 1 to B and 0 to ""
Vec3 : transform 1 to C and 0 to ""
to obtain only 1 vector Vec who is the paste of the 3 vectors (Ex :
ABC, 
BC, AC, AB,...)
Any idea ?
Thank you for your help

-- 
Michel ARNAUD

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