facet_grid with nrow or ncol?

[Tengfei Yin]

Hi dear all,

I have a general question, is there a way to use facet_grid( A ~ B) with ncol or nrow. or in other words, is it possible to rearrange the panels in facet_grid, and layout by specifying ncol or nrow. 

the case is usefull  when in the formula like A ~ B, where B has 21 levels（lots of levels） and I hope to wrap them in a 7 * 3 grid, in each grid cell, is a small facet_grid panel. 

It's possible to use gtable to get components I need and use grid.arrange to rearrange all the components in lower level, I am wondering if there is any existing function to do the same thing? 

Thanks

Tengfei

--
Tengfei Yin
MCDB PhD student
1620 Howe Hall, 2274,
Iowa State University
Ames, IA,50011-2274

[Ben Bolker]

One potential solution might be to create the A:B interaction within
your original data frame (mydata <- transform(mydata,
ABint=interaction(A,B))) and then facet_wrap(~ABint,nrow=...) ... ?
(Rearranging the order of the levels if necessary ...) ?

On 12-07-20 12:03 PM, James wrote:
>
> Did you get a reply for this as I am having a simialr problem

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[Jean-Olivier Irisson]

On 2012-Jul-20, at 18:44 , Ben Bolker wrote:
>
>
> One potential solution might be to create the A:B interaction within
> your original data frame (mydata <- transform(mydata,
> ABint=interaction(A,B))) and then facet_wrap(~ABint,nrow=...) ... ?
> (Rearranging the order of the levels if necessary ...) ?

You actually don't even need to compute the interaction yourself

facet_wrap(~A+B, ncol=...)

should work.

Jean-Olivier Irisson
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[James]

perfect...thanks guys. Just discovered facet_grid and didn't think that facet_wrap would work as I only had one variable to seperate the plots (in this case, date).

By using

facet_wrap(~date,ncol=4)

This produced all the graphs in a nice grid opposed to a list format.

Thanks!

James

On Thursday, February 16, 2012 6:12:16 PM UTC, Tengfei wrote: