In data martedì 10 aprile 2012 13:34:13, Nevil Amos ha scritto:
> How do I remove a "$" character from a string sub() and gsub() with "$" or
> "\$" as pattern do not work.
>
> > sub("$","","ABC$DEF")
>
> [1] "ABC$DEF"
>
> > sub("\$","","ABC$DEF")
>
> Error: '\$' is an unrecognized escape in character string starting "\$"
>
> > sub(\$,"","ABC$DEF")
>
> Error: unexpected input in "sub(\"
>
> Thanks
You just need a double backslash:
> sub("\\$","","ABC$DEF")
[1] "ABCDEF"
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