marc:
Thanks for the quick reply. I learned something new today, I wasn't aware of
the big.mark argument.
--- On Fri, 2/6/09, Marc Schwartz <marc_schwa...@comcast.net> wrote:
> From: Marc Schwartz <marc_schwa...@comcast.net>
> Subject: Re: [R] format \Sexpr{}
> To: mazatlanmex...@yahoo.com
> Cc: r-h...@stat.math.ethz.ch
> Date: Friday, February 6, 2009, 12:39 PM
> on 02/06/2009 02:32 PM Felipe Carrillo wrote:
> > Hi everyone: It is probably something simple but I
> can't find
> > anything related to this. Could someone show me how to
> format the sum
> > of x. the result is 10000 but I need comma formatted
> like this:
> > 10,000. Since I am going to be using this number to be
> added to
> > another calculation, I want to be able to remove the
> comma from the
> > 10,000 value. Thanks
> >
> > x <- c(2000,3000,5000) this is the sum of x:
> \Sexpr{sum(x)}
>
> See ?format and/or ?prettyNum and take note of the
> 'big.mark' argument:
>
> x <- c(2000,3000,5000)
>
> > sum(x)
> [1] 10000
>
> > format(x, big.mark = ",")
> [1] "2,000" "3,000" "5,000"
>
> > format(sum(x), big.mark = ",")
> [1] "10,000"
>
> Note that these will be character vectors, not numeric, so
> be sure to
> retain the original numeric value(s) for subsequent math
> ops.
>
> HTH,
>
> Marc Schwartz
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