> On Jul 26, 2016, at 2:28 PM, Dimitri Liakhovitski
> <dimitri.liakhovit...@gmail.com> wrote:
>
> gsub("[^0-9]", "", x)
?regex
I think you might be bit embarrassed because it seems pretty obvious once you
know that character class elements like "." don't need to be escaped so it's
just this:
> gsub("[^0-9.]", "", x)
[1] "84" "293.04" "12.5"
You might want to add in some separator if you are processing expression this
way.
> gsub("[^0-9., ]", "", gsub( "[-+*/]", " , ", x) )
[1] " , 84" " , 293.04 , 1200" " 12.5"
--
David Winsemius
Alameda, CA, USA
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