[R] Dropping 'empty' panels from lattice

[amvds at xs4all.nl]

How would I paste factors c1...c10 to one grouping factor?

Can you give an example?

Thanks much!
Alex


>  <amvds <at> xs4all.nl> writes:
>
>>
>> I have 8 cofactors possibly affecting one and only one variable.
>>
>> I make conditional histograms:
>>
>> <-pdf(file="tst3.pdf",paper="special",width=36,height=36)
>>
> <-histogram(~Oversized|dat$c1*dat$c2*dat$c5*dat$c6*dat$c7*dat$c8*
>   dat$c9*dat$c10,nint=21,layout=c(32,8),data=dat,type="count")
>> <-dev.off()
>>
>> This works (compliments to R developers!) but it does generate a large
>> plot with many panels being 'empty', e.g. that combination of factors
>> c1..c10 never occurs in this data set.
>>
>> Is there a way to autmatically drop those empty panels?
>>
>
> Since there is little hope that you get a useful arrangement in the
> 2D-paper world, and neither in 4D relativistic space, I would
> suggest to make a new factor by pasting all cX factors, use that
> as the only grouping factor.
>
> Dieter
>
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