Hi Tom,

Try this:

> G <- "Number: %s"
> sprintf(G, toString(A))
[1] "Number: 3, 4, 5"

Cheers  Joe

 
Joe Crombie
 
Biosecurity and Information Sciences
Bureau of Rural Science
Canberra  Australia
 
p: +61 2 6272 5906
e: [EMAIL PROTECTED]
 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Tom Sgouros
Sent: Friday, 30 November 2007 12:43 PM
To: r-help@r-project.org
Subject: [R] vector sprintf argument


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

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