Thanks for both comments. Indeed the sep = "" is needed.

On Sun, Oct 9, 2011 at 9:43 PM, Rolf Turner <rolf.tur...@xtra.co.nz> wrote:

> On 10/10/11 04:53, R. Michael Weylandt wrote:
>
> <SNIP>
>
>  Try this:
>>
>> for (i in 1990:2009) {
>>     varName = paste("pci", i, collapse = "")
>>     assign(varName, log(get(varName))
>> }
>>
>>  <SNIP>
>
> I believe that ``sep= " '' is needed here rather than collapse.
>
> Try:
>        paste("junk",42,collapse="")
>
> You get
>
>    [1] "junk 42"
>
> with a space in it.  Here paste is using the default value of sep, namely "
> ",
> and is not using collapse at all, since there is nothing to collapse (the
> value is a scalar to start with).
>
> Whereas
>
>        paste("junk",42,sep="")
>
> gives
>
>    [1] "junk42"
>
> which is what is wanted.
>
>    cheers,
>
>        Rolf Turner
>

        [[alternative HTML version deleted]]

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