[R] Beginner's question: number formatting

[Michal Figurski]

Thank you all for quick responses,

This was very helpful. I knew there was a simple way!

--
Michal J. Figurski


Prof Brian Ripley wrote:
> sprintf("%03d", 2)
> formatC(2, width=3, flag="0")
> 
> both give
> 
> [1] "002"
> 
> On Fri, 17 Oct 2008, Michal Figurski wrote:
> 
>> Hello R-helpers,
>>
>> I have a problem with formatting a single number to show leading 
>> zeros. For example, I want "2" displayed as "002".
> 
> I hope you meant that you want 2, not "2", so displayed.  Otherwise you 
> need as.numeric("2") here.
> 
>> My numbers have 1 to 3 digits and I would like them all to display 3 
>> digits for printing. I know I could use "paste" in a loop with several 
>> "if"s, but I was wondering if there is a single function that can do 
>> this.
>>
>> I have tried "format", "prettyNum" and "formatC" back and forth, but 
>> these functions don't seem to be able to display leading zeros. Please 
>> help.
> 
> You will find studying the help more productive than 'tried ... back and 
> forth'.
>