[R] handle a sequence of strings with for loop

[Prof Brian Ripley]

On Mon, 28 Jan 2002 jonathan_li at agilent.com wrote:

> Hi all,
>
> I have a string sequence:
> "my00", "my01", "my02",...,"my99".
> I would like to process them one by one use a for loop like:
>
> for(i in 0:99){
> 	str <- paste("my", i, sep="")
> 	print(str)
> }
>
> But this only works with string "my10" to "my99".
> In Python, this problem can be solved by string formating zero fill such as
> print "%02d", i;
> which will give
> 00, 01, ...,09,10,...,99
>
> I wonder if R has similar solutions?

?formatC. As in

> formatC(9, width=2, flag="0")
[1] "09"


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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