Dropping 'empty' panels from lattice

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

 Can you give an example?
In this case interaction would be conceptually more appropriate

histogram(~Oversized | with(dat, interaction(c1, c2, c5, c6, c7, c8, c9, c10)),
          nint=21,layout=c(32,8),data=dat,type="count")

but

   with(dat, paste(c1, c2, c5, c6, c7, c8, c9, c10, sep = ":"))

should also work.

-Deepayan
 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
 >
 > ______________________________________________
 > 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.
 >

 ______________________________________________
 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.