Re: [R] Problem reading from a data frame

From: Jorge Ivan Velez <jorgeivanvelez_at_gmail.com>
Date: Wed, 02 Jul 2008 10:36:13 -0400

Dear Nina,

Is this what you want?

x=c("MT2342","MT0982","MT2874")
substr(x,3,nchar(x))

HTH, Jorge

On Wed, Jul 2, 2008 at 10:24 AM, <naw3_at_duke.edu> wrote:

> Hi,
>
> I have a data frame with strings that have two letters and four numbers.
> When I
> store a whole row as a new vector and try to remove the preceding letters
> using
> the gsub command, it returns characters of single numbers that have no
> relation
> to the numbers in each string. I also noticed that when I view the new
> vector
> before using gsub, it includes the original headers from the data frame.
> For
> example,
>
> The original row will contain (i'm not showing the headers):
>
> MT2342 MT0982 MT2874
>
> and after I use the command, 'gsub('[^0-9]','',PthwyGenes),' I get:
>
> "6" "6" "8"
>
> and this result no longer has any headers.
>
> Does anyone know why this happens and how I can fix it?
>
> Thanks,
> -Nina
>
> ______________________________________________
> R-help_at_r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

        [[alternative HTML version deleted]]



R-help_at_r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Wed 02 Jul 2008 - 14:56:04 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Wed 02 Jul 2008 - 15:01:20 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive