Put the "!" in front of the whole expression, not just the %in%
function. I.e.
sub <- mydata[!(mydata$group %in% c("A", "B", "E", "G")),]
Christian
On Thu, 2010-10-07 at 09:17 +1000, Emily Deomano wrote:
> Good day,
> I need to subset a data by removing several rows. I know the %in% operator,
> i.e.
>
> sub <- mydata[group %in% c("A","B","E","G"), ]
>
> What I need is the opposite, that is remove rows and/or columns. What is the
> operator for "NOT IN"? I tried (i)! %in% and (ii) ^%in% and both resulted
> in a "could not find function" error.
>
>
> Kind Regards
>
> Emily Deomano | Biometrician
> BSES Limited | ABN 29 103 760 005 | PO Box 86 | 50 Meiers Road |
> Indooroopilly Q 4068 Australia
> P: +61 7 3331 3304 | M: +61 408 656 452 | F: +61 7 3871 0383 | E:
> [email protected]<mailto:[email protected]> | W: bses.com.au
>
>
> -------------------- Internet e-Mail Disclaimer --------------------
>
> PRIVILEGED - PRIVATE AND CONFIDENTIAL: This email and any files transmitted
> with it are intended solely for the use of the addressee(s) and may contain
> information, which is confidential or privileged. If you are not the intended
> recipient, be aware that any disclosure, copying, distribution, or use of the
> contents of this information is prohibited. In such case, you should destroy
> this message and kindly notify the sender by reply e-mail. The views and
> opinions expressed in this e-mail are those of the sender and do not
> necessarily reflect the views of the company.
>
> VIRUSES: Email transmission cannot be guaranteed to be secure or error free,
> as information may be intercepted, corrupted, lost, destroyed, arrive late or
> incomplete or contain viruses. This email and any files attached to it have
> been checked with virus detection software before transmission. You should
> nonetheless carry out your own virus check before opening any attachment.
> BSES Limited does not represent or warrant that files attached to this email
> are free from computer viruses or other defects and accepts no liability for
> any loss or damage that may be caused by software viruses
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> [email protected] 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.
______________________________________________
[email protected] 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.
