[R] how to replace a single forward slash with a double backward slash in a string?

[David Winsemius]

On Dec 13, 2009, at 1:00 PM, Sean Zhang wrote:

> Dear R-helpers.
>
> Can someone kindly tell me how to replace a single forward slash  
> with double
> backward slash in a string?
>
> i.e.,  from  "a/b" to "a\\b"

 > sub("/", "\\\\","a/b")
  #the backslashes need to be doubled because they are the escape  
character.
[1] "a\\b"

>
> Many thanks in advance.
>
> -Sean
>
> 	[[alternative HTML version deleted]]
>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT