[R] Help with gsub function

[Bill Poling]

Good morning Peter, yes that works fine. My attempt was based on a google search that looked promising but was obviously more complicated than it needed to be.

Thank you.

WHP

From: Peter Langfelder <peter.langfelder using gmail.com>
Sent: Friday, March 15, 2019 3:53 PM
To: Bill Poling <Bill.Poling using zelis.com>
Cc: r-help (r-help using r-project.org) <r-help using r-project.org>
Subject: Re: [R] Help with gsub function

If you want to remove just the hyphen, why not do

sub("-", "", tb2a$TID)

sub("-", "", "73-017323")
[1] "73017323"

Am I missing something?

Peter

On Fri, Mar 15, 2019 at 12:46 PM Bill Poling <mailto:Bill.Poling using zelis.com> wrote:
>
> Good afternoon.
>
> sessionInfo()
> #R version 3.5.3 (2019-03-11)
> #Platform: x86_64-w64-mingw32/x64 (64-bit)
> #Running under: Windows >= 8 x64 (build 9200)
>
> I am using gsub function to remove a hyphen in a 9 character column of values in order to convert it to integer.
>
> Works fine except where the second segment has a leading 0, then it is eliminating the 0
>
> Example "73-0700090" becomes " 73700090"
> "77-0633896" becomes "77633896"
>
> Is there a remedy for this?
>
> tb2a$TID2 <- gsub(tb2a$TID, pattern="-[0-0]{0,7}", replacement = "")
>
> head(tb2a$TID,n=10)
> [1] "11-1352310" "45-2711804" "35-6001540" "77-0633896" "62-1762545" "61-1029768" "73-0700090" "47-0376604" "47-0486026" "38-3833117"
> > head(tb2a$TID2,n=10)
> [1] "111352310" "452711804" "356001540" "77633896" "621762545" "611029768" "73700090" "47376604" "47486026" "383833117"
>
> I have googled the problem and have not found a solution.
>
> http://www.endmemo.com/program/R/gsub.php
> http://r.789695.n4.nabble.com/extracting-characters-from-string-td3298971.html
>
>
> Thank you.
>
> WHP
>
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