[R] How to Turn OFF Vectors Recycling Rule in Paste()

[Preeti ranjan Pradhan]

Hello Team,

Platform:Windows 7 32-bit
R Version:3.2.2

I have two vectors as follows

> S = c("aa", "bb", "cc", "dd", "ee")
> X= c("aa", "bb", "cc", "dd")

When I trying a paste function

> z=paste(S,X)
> z

I am getting result as

[1] "aa aa" "bb bb" "cc cc" "dd dd" "ee aa"

I don't need the last element of S vector should get concatenated with
first element of X vector rather than it should take a space or null value
for concatenation. If I specify explicit space value in X vector like

> X= c("aa", "bb", "cc", "dd", " ")

Then I am getting result as
> z=paste(S,X)
> z
[1] "aa aa" "bb bb" "cc cc" "dd dd" "ee  "

Could you please suggest me how to turn off the Vector recycle in paste
function?

Thanks and Regards
Preetiranjan Pradhan

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