[R] concatenating two vectors

[arun]

Hi,
Try this:
 paste0(expand.grid(a,b)$Var1,expand.grid(a,b)$Var2)
[1] "a1b1" "a2b1" "a1b2" "a2b2"
A.K.




----- Original Message -----
From: Özgür Asar <oasar at metu.edu.tr>
To: r-help at r-project.org
Cc: 
Sent: Friday, September 14, 2012 8:54 AM
Subject: [R] concatenating two vectors

Dear all,

I want to concatenate the elements of two vectors such as

a<-c("a1","a2")
b<-c("b1","b2")

and obtain

"a1b1", "a1b2","a2b1","a2b2"

I tried the paste and paste0 functions, but they yielded elementwise
concatenation such as

"a1b1","a2b2"

I am wondering that is there an efficient way of doing my wish, for instance
without using for loop etc.

Best

Ozgur 



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