boxplot grouped by two variables: general issue
On Tue, 21 Nov 2000, Vadik Kutsyy wrote:
Is there a quick way to make boxplots groups by two
variables? By that
I mean, that if x axes have values ("A","B","C"), than at
each value
there would be a few boxplots each for a value of second
variable (say
("1","2","3")).
If I understand you correctly you want to try the "interaction" function in a boxplot. Your data needs to be organised into a data.frame with appropriate factors. Here's a simple example ...
I'd rather prefer to have something like coplot(breaks | wool * tension, data = warpbreaks, panel=function(x, y, ...)boxplot(x)) but there are three problems: 1) coplot doesn't seem to support univariate panel functions 2) coplot doesn't seem to support synchronization options for xlim= and ylim= across panels 3) plot functions appear to be EITHER panel functions OR high level plot functions. Needing two versions for each plot function is a little bit complicated. Rather have ONLY panel functions and a one-panel high level wrapper. Here are my questions: a) Any plans to implement trellis? b) Are there any other solutions in R which offer simple trellis functionality? c) Do you think, attacking these problems leads to reinventing trellis with all it's complexity? If the answers turn out to be c(a=NO,b=NO,c=NO) I would like to ask in more detail: Is it possible to write plot functions to properly behave as high level AND as panel functions? Are there any issues that NEED to be addressed beyond 1) to 3) ? Any recommendations? Any related work in progress? Any volunteers? If nobody else is attacking this, I will think about a solution (r-devel: AFTER the strwidth() issue has been resolved) Jens -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._