[R] concatenating a string to a column

Peter Langfelder peter.langfelder at gmail.com
Wed Nov 10 06:15:36 CET 2010

On Tue, Nov 9, 2010 at 9:09 PM,  <sachinthaka.abeywardana at allianz.com.au> wrote:
> Hi All,
> Suppose I want to concatenate a zero to all the values to a column called
> period in data frame A. I want to do the following but the following
> command actually deletes the entire column altogether.
>  A$period<-cat(A$period,"0",sep="");

cat returns NULL, so you get NULL in A$period.



Of course, if A$period are integer numbers, a simple way of adding a
zero is to multiply everything by 10.


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