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format a number

4 messages · Martin Kaffanke, Romain Francois, jim holtman

Martin Kaffanke
# 
Hi there!

I have i.e. v = c(0.43554, -0.22343), and so on.  Now I'd like to make a
format like

format(v, digits=2)  but without the leading 0, so 0.43554 becomes .44,
-0.22343 becomes -.22 

How can I do that?

runnable example for copy and paste:

v = c(0.43554, -0.22343)
format(v, digits=2)

Thanks,
Martin
Romain Francois
# 
Hello,

 > sub( "^([- ])?0+", "\\1", format(v, digits=2) )
[1] " .44" "-.22"

Cheers,

Romain
Martin Kaffanke wrote:
jim holtman
# 
You can also use sprintf:
[1] "0.44"  "-0.22"

        
On 3/10/08, Martin Kaffanke <technik at roomandspace.com> wrote:

            

      
      
      
    

        

      
      
    

        

  
    

      
      
    

  


  


      

    

    

      
      

        


  

        

      jim holtman
    

    

      
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Sorry, I missed the part about not having th leading zero.  It is too
early yet with daylight savings time and no coffee so far.

        
On 3/10/08, Martin Kaffanke <technik at roomandspace.com> wrote: