[R] lattice question: removing strips

[Martin Ivanov]

Dear Pascal, 
Thank You very much for Your reply. Here is a minimal working example:

library(lattice);
# this is with both strips plotted:
data <- data.frame(x=1:5, y=6:10, f1=c("a1", "a1", "a1", "a2", "a3"), f2=c("b1", "b2", "b2", "b1", "b2"));
p <- xyplot(y ~ x | f1 + f2, data=data)
print(p);

# and this is my attempt to only plot the strips for the second conditioning variable, i.e. for f2:
my.strip <- function(which.given, strip.levels, ...) {
  if(which.given == 1) {
    return(FALSE);
  }
  else {
    strip.default(which.given=which.given, strip.levels=c(TRUE, FALSE), ...);
  }
}

p1 <- xyplot(y ~ x | f1 + f2, data=data, strip=my.strip)
print(p1);

#As You can see, here I do not get the strips for f1 potted, but there is an empty space below
the strips for f1, which I cannot get rid of. I only want to show the strips for f2. Directly
below them I want to see the panels themselves, instead of an empty space for the missing f1 strips.

Any suggestions?

Best regards,

Martin



 >-------- Оригинално писмо --------
 >От:  Pascal Oettli 
 >Относно: Re: [R] lattice question: removing strips
 >До: Martin Ivanov 
 >Изпратено на: Понеделник, 2014, Февруари 10 12:56:21 EET
 >
 >
 >Hello,
 >
 >Please provide a "commented, minimal, self-contained, reproducible
 >code", as requested.
 >
 >Regards,
 >Pascal
 >
 >On 10 February 2014 19:48, Martin Ivanov  wrote:
 >>  Dear lattice users,
 >>
 >> I am trying to produce a lattice graph with two conditioning variables.
 >> My problem is that I only want to show the strips for the levels of the second conditioning variable.
 >> I want to remove the strips for the levels of the first conditioning variable.
 >> I tried with the strip function, but if I tell it to return FALSE or NULL whenever which.given == 1, I just get empty space below the strips for the second conditioning variable. And I want to remove that space altogether. Is it somehow achievable in lattice?
 >>
 >> I also tried setting layout.heights$strip to 0 when which.given == 1, but it seems to only work globally, so either
 >> the strips for both conditioning variables vanish, or both are present.
 >>
 >> Any suggestions will be appreciated.
 >>
 >>
 >> Best regards,
 >>
 >> ______________________________________________
 >> 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.
 >
 >
 >
 >-- 
 >Pascal Oettli
 >Project Scientist
 >JAMSTEC
 >Yokohama, Japan
 >