[R] How to suppress the empty plots in xyplot (lattice)

[Bert Gunter]

What do you think

"A" * "B"

means?  Why? Have you read R's Introduction manual?

-- Bert

On Tue, Feb 14, 2012 at 9:50 AM, Jun Shen <jun.shen.ut at gmail.com> wrote:
> Thanks, Jeff,
>
> It did work in one way if I use
>
> xyplot(Y~X|as.factor(ID*PERIOD),data=...)
>
> But I would like to do something like
>
> xyplot(Y~X|as.factor(paste("ID=",ID)*paste("PERIOD=",PERIOD)),data=...)
>
> Then, it didn't work
>
> The error message:
> Error in paste("ID=", ID) * paste("PERIOD=", PERIOD) :
>  non-numeric argument to binary operator
>
> On Tue, Feb 14, 2012 at 11:08 AM, Jeff Newmiller
> <jdnewmil at dcn.davis.ca.us>wrote:
>
>> Set up a single (factor) variable that identifies the combinations that
>> exist, and plot using that variable.
>> ---------------------------------------------------------------------------
>> Jeff Newmiller                        The     .....       .....  Go Live...
>> DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live
>> Go...
>>                                      Live:   OO#.. Dead: OO#..  Playing
>> Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
>> /Software/Embedded Controllers)               .OO#.       .OO#.  rocks...1k
>> ---------------------------------------------------------------------------
>> Sent from my phone. Please excuse my brevity.
>>
>> Jun Shen <jun.shen.ut at gmail.com> wrote:
>>
>> >Dear all,
>> >
>> >In a plot command like
>> >
>> >xyplot(Y~X|ID*PERIOD,data=...)
>> >
>> >xyplot will generate all the possible ID*PERIOD combinations. But not
>> >all
>> >of them have data in there. So I have a lot of empty plots. How can I
>> >suppress those empty plots and ask xyplot only to generate plots
>> >actually
>> >with data. Thanks.
>> >
>> >Jun
>> >
>> >       [[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.
>>
>>
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
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> 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.



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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