According to the help page sprintf will recycle its arguments:
The arguments (including fmt) are recycled if possible a whole number of
times to the length of the longest, and then the formatting is done in
parallel.
Therefore the following works:
> sprintf("Number: %d", A)
[1] "Number: 3" "Number: 4" "Number: 5"
Another option is to create a character string from A and then print it:
> sprintf("Number: %s", paste(A, collapse=" "))
[1] "Number: 3 4 5"
-Christos
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Moshe Olshansky
> Sent: Thursday, November 29, 2007 11:45 PM
> To: Tom Sgouros; r-help@r-project.org
> Subject: Re: [R] vector sprintf argument
>
> The only thing I can think of is:
>
> > a <- c(1,2.7,5.19)
> > F<-c("numeric: %d ","%g ","%8.3f")
> > x<-sapply(1:length(a),function(i)
> sprintf(F[i],a[i]))
> > y<-paste(x,sep="",collapse="")
>
> But I am sure that you will get a better advice elsewhere.
>
> --- Tom Sgouros <[EMAIL PROTECTED]> wrote:
>
> >
> > Hello all:
> >
> > If I have a vector and a format, I want to do this:
> >
> > > A <- c(3,4,5)
> > > F <- "Number: %d, %d, %d"
> > > sprintf(F,A)
> >
> > This doesn't work because A isn't three arguments, it's
> just one. Is
> > there a way to peel the vector members out of A so that sprintf can
> > get at them?
> >
> > I would like to do this because I have a large set of
> variable-length
> > data that I'd like to print out in fancy formatted form.
> The vectors
> > range in length from 2 to 7. Each row is different, so I had been
> > hoping to do this with an array of formats, too.
> >
> > I feel like I'm either overlooking something obvious, or have
> > determined to do this in an un-R fashion. Any advice is
> welcome. (On
> > this topic, that is.)
> >
> > Many thanks,
> >
> > -tom
> >
> >
> > --
> > ------------------------
> > tomfool at as220 dot org
> > http://sgouros.com
> > http://whatcheer.net
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
>
> ______________________________________________
> R-help@r-project.org mailing list
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> PLEASE do read the posting guide
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> and provide commented, minimal, self-contained, reproducible code.
>
>
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