[R] Replace a dot in a string (".") with a space (" ")

[Bert Gunter]

Well of course. See ?regexp where it says:

"The period . matches any single character. "

(Always a good idea to read man pages, although this *is* a complex one)

Setting the fixed argument to TRUE  is one way to get what you want
(there are others).

> sub(".", " ", "c.t",fixed=TRUE)
[1] "c t"

Bert

Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Fri, Nov 18, 2016 at 4:13 PM, John <miaojpm at gmail.com> wrote:
> Hi,
>
>    Is there any function that replaces a dot with a space? I expect "c t"
> from the output of the second call of function sub, but it did not do so.
>
>> sub("a", "b", "cat")
> [1] "cbt"
>> sub(".", " ", "c.t")
> [1] " .t"
>
> Thanks!
>
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>
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