[R] add leading zeros

Jorge I Velez jorgeivanvelez at gmail.com
Fri Jul 27 06:53:43 CEST 2012


Hi Josh,
Check ?formatC and ?sprintf for some options.
Regards,
Jorge.-

Sent from my phone. Please excuse my brevity and misspelling.

On Jul 27, 2012, at 12:49 AM, LCOG1 <jroll at lcog.org> wrote:

> Hi all,
>     Trying to use an apply to add leading zeros to a set of values in a
> given vector.  I only want to add enough zeros so that the total number of
> characters is 5, so if I have an element "1" i want "00001" or "9000" I want
> "09000".  I tried
>
> vec <- 1:1000
> sapply(vec, FUN = sprintf(paste("%0",(5-nchar(x)),"d",sep=""),x))
>
> but she doesnt work.  I struggle with the apply family for sure.  Thanks
>
> Josh
>
>
>
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