Dear Lu Wei,
I'm the author of the Rcmdr package but not of RcmdrPlugin.plotByGroup, so if
there really is a problem -- which isn't apparent from your message -- then you
may wish to contact the package author.
First, as a general matter, menu items in the Rcmdr are grayed out if they're
inappropriate in the current context. Rcmdr plug-in authors can use the same
mechanism. So, for example, most menu items are grayed out before you read a
data set, and menu items that require a categorical variable will be grayed out
if there are no factors (or character variables or logical variables) in the
active data set.
Second, Rcmdr plug-in packages aren't loaded by the library("Rcmdr") command.
You can load a plug-in from the Rcmdr Tools menu; and many (but not all) Rcmdr
plug-in packages can be loaded directly via the library() command, in which
case the Rcmdr package is also loaded. I don't know whether
library("RcmdrPlugin.plotByGroup") will work, but you can try it.
I hope this helps,
John
--------------------------------------
John Fox, Professor Emeritus
McMaster University
Hamilton, Ontario, Canada
Web: socserv.mcmaster.ca/jfox
> -----Original Message-----
> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Lu Wei
> Sent: Saturday, July 22, 2017 12:49 PM
> To: r-h...@stat.math.ethz.ch
> Subject: [R] cannot use package RcmdrPlugin.plotByGroup
>
> Greetings,
>
> I am a new use of R, starting from R-commander.
>
> I find that the default quantile-comparison (Q-Q plot) of R-commander
> has no group option, and I happened to notice RcmdrPlugin.plotByGroup in
> the packages list. As the name is so explicit, I installed it, loaded
> it, R-commander restarted, but the 3 menu item under Graphs->plot by
> group are all greyed out. What could be wrong?
>
> --
> Regards,
> Lu Wei
> PGP key ID: 0x A12F EF75 92CC E1EA
>
> ______________________________________________
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
