How generate "A01", "A02", ..., "A99"?

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch 
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Marc Schwartz
Sent: Friday, August 20, 2004 4:38 PM
To: Peter Dalgaard
Cc: R Help; sundar.dorai-raj at pdf.com
Subject: Re: [R] How generate "A01", "A02", ..., "A99"?


On Fri, 2004-08-20 at 15:15, Peter Dalgaard wrote:

Sundar Dorai-Raj <sundar.dorai-raj at pdf.com> writes:

Yao, Minghua wrote:

Hi,
 Anyone can tell me how to generate "A01", "A02", ..., "A99"?
 paste("A", 1:99, sep="") generates "A1", "A2",..., 

"A99". This is

not  what I want.
 Thanks for the help.
 -MY
	[[alternative HTML version deleted]]

How about?

sapply(1:99, function(i) sprintf("A%02d", i))

or just 

sapply(1:99,sprintf,fmt="A%02d")

or yet another variation:

paste("A", formatC(1:99, width = 2, format = "d", flag = "0"), 
      sep = "")


HTH,

Marc Schwartz