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Why is format(10000, big.mark = "\\,") not 10\,000?

7 messages · Uwe Ligges, Marius Hofert, Duncan Murdoch

Marius Hofert
# 
Hi,

why does format(10000, big.mark = "\\,") not give me "10\,000"? How can I get this kind of "big.mark"?

Cheers,

Marius
Uwe Ligges
# 
Actually I expected

format(10000, big.mark = "\\\\,")

to work (you need to double excape the backslashes here).

But the two characters are reversed due to the code in prettyNum(). Not 
sure if it is expected, but the user was probably not expected to use 
more than a single character as the big.mark.

You can get it right by reversing as in:

format(10000, big.mark = ",\\\\")


Uwe Ligges
On 30.12.2010 19:32, Marius Hofert wrote:
Marius Hofert
# 
Dear Uwe,
this I also tried :-)
but then I get "10\\,000" instead of "10\,000". The reason why I want to have "10\,000" is for use in LaTeX. If I produce the format "10\\,000" in a table, then xtable gives me 10$\backslash$,000 for the corresponding cell entry, which is wrong :-(. Do you know a trick for that?

Cheers,

Marius
Uwe Ligges
#
On 30.12.2010 19:53, Marius Hofert wrote:
No, you get "10\,000" which is represented by R when printed as 
"10\\,000". If you want it as output export it by write......() or just 
use cat() as in:

cat(format(10000, big.mark = ",\\\\"))

Uwe



  The reason why I want to have "10\,000" is for use in LaTeX. If I 
produce the format "10\\,000" in a table, then xtable gives me 
10$\backslash$,000 for the corresponding cell entry, which is wrong :-(. 
Do you know a trick for that?
Marius Hofert
# 
Ahhh, great! 
I knew it will be correct if the output is directed to a file, but I wanted it for the console [which is perfectly solved by cat()]. 

Thanks, Uwe.

Cheers,

Marius
On 2010-12-30, at 19:55 , Uwe Ligges wrote:

            

      
      
      
    

        

      
      
    

            

      
      
      
    

  
  


  


      

    

    

      
      

        


  

        

      Duncan Murdoch
    

    

      
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On 30/12/2010 1:53 PM, Marius Hofert wrote:

            

      
      
      
    

        
I think you are confusing strings with the way they are printed.  "\\" 
is how a single backslash is printed (by print()), which escapes the \. 
  Use cat() to output it without adding the escape.

Duncan Murdoch

            

      
      
      
    

        

      
      
    

            

      
      
      
    

        

      
      
    

  
  


  


      

    

    

      
      

        


  

        

      Duncan Murdoch
    

    

      
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Hi Uwe.

As you suggested in a private mail, the reversed big.mark looks like a 
bug.  I've fixed it for R 2.13.0.

Duncan Murdoch

        
On 30/12/2010 1:55 PM, Uwe Ligges wrote: