[R] Wild card characters

[Gabor Grothendieck]

Another way to do it is:

sub("[.].*", ".41", x)

This says to replace the first dot and everything after by .41.  When . appears
in a character class, i.e. [.], then you don't need backslashes.  Also
you don't need backslashes in the second argument.  


On 7/30/05, Uwe Ligges <ligges at statistik.uni-dortmund.de> wrote:
> Dhiren DSouza wrote:
> 
> > I have a string '982323.1' and would like to replace everything after the
> > '.' with a '41'.  So the string should look like '982323.41'.  The code I
> > use to do this is
> >
> > sub('\.$','41',982323.1)
> 
> You have to escape "\", see ?regexp:
> 
> sub('\\.[[:digit:]]*$','\\.41', "982323.1")
> 
> Uwe Ligges
> 
> 
> 
> > This works fine as long as there is only 1 digit after the decimal.  If I
> > have '982323.10', then the result of the code is '982323.141' instead of
> > '982323.41'
> >
> > How do I fix the code to replace all characters after the decimal by 41?
> >
> > Thank you
> >
> > -D
> >
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