R help - Jul 2008 - Lattice: merged strips?

Hi all,

By default a call to xyplot from the Lattice package when using 2  
factors [eg xyplot( dv~iv | XY * AB ) ] yields the following shingle  
structure:

|_A_|_A_|_B_|_B_|
|_X_|_Y_|_X_|_Y_|

However, I'm wondering if it is possible to merge the upper shingle  
within levels of that factor, as in:

|___A___|___B___|
|_X_|_Y_|_X_|_Y_|

Mike

--
Mike Lawrence
Graduate Student, Department of Psychology, Dalhousie University

www.memetic.ca

"The road to wisdom? Well, it's plain and simple to express:
Err and err and err again, but less and less and less."
	- Piet Hein

Sorry, my original message used the term 'shingle' where I meant to  
use the term 'strip'. That is, I'm looking to merge the strip of
text
naming the shingles.

Mike

On 10-Jul-08, at 1:47 AM, Mike Lawrence wrote:
> Hi all,
>
> By default a call to xyplot from the Lattice package when using 2  
> factors [eg xyplot( dv~iv | XY * AB ) ] yields the following shingle  
> structure:
>
> |_A_|_A_|_B_|_B_|
> |_X_|_Y_|_X_|_Y_|
>
> However, I'm wondering if it is possible to merge the upper shingle  
> within levels of that factor, as in:
>
> |___A___|___B___|
> |_X_|_Y_|_X_|_Y_|
>
> Mike
>
> --
> Mike Lawrence
> Graduate Student, Department of Psychology, Dalhousie University
>
> www.memetic.ca
>
> "The road to wisdom? Well, it's plain and simple to express:
> Err and err and err again, but less and less and less."
> 	- Piet Hein
>
--
Mike Lawrence
Graduate Student, Department of Psychology, Dalhousie University

www.memetic.ca

"The road to wisdom? Well, it's plain and simple to express:
Err and err and err again, but less and less and less."
	- Piet Hein

Mike

see ?strip.custom and strip.default

Basically you need to create a string of factor levels equal to the number 
of panels.

Below is an example for a plot of 24 panels 4 columns and six rows.
so that row 1 is:

"2000 Summer" | "2000 Autumn" | "2000 Winter" |
"2000 Spring"
and so on for the remaining panel rows.

strip    = strip.custom(factor.levels = c(paste(rep(2000:2005, each = 4),
                                                        
rep(c("Summer","Autumn","Winter","Spring"),6),
sep = " ") ),

Use the xyplot layout argument to set up your layout properly to make it 
easier.

If you want a 2 line strip then may be "\n" to break the paste into to
2
lines may do.
There was post about ?6 weeks ago on it I think

Regards

Duncan Mackay
Department of Agronomy and Soil Science
University of New England
ARMIDALE NSW 2351
Email:
home: mackay at northnet.com.au



At 14:47 10/07/2008, you wrote:
>Hi all,
>
>By default a call to xyplot from the Lattice package when using 2
>factors [eg xyplot( dv~iv | XY * AB ) ] yields the following shingle
>structure:
>
>|_A_|_A_|_B_|_B_|
>|_X_|_Y_|_X_|_Y_|
>
>However, I'm wondering if it is possible to merge the upper shingle
>within levels of that factor, as in:
>
>|___A___|___B___|
>|_X_|_Y_|_X_|_Y_|
>
>Mike
>
>--
>Mike Lawrence
>Graduate Student, Department of Psychology, Dalhousie University
>
>www.memetic.ca
>
>"The road to wisdom? Well, it's plain and simple to express:
>Err and err and err again, but less and less and less."
>         - Piet Hein
>
>______________________________________________
>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.