[R] Overlapping x axes using Lattice

[Breheny, Patrick]

I'm not clear on what you're looking for here.  Your x-axis is numeric, why are you converting it to a factor?  If you keep it numeric, the labels don't overlap.  Or perhaps you don't want it to be numeric, in which case why not just change the aspect ratio of the plot until they no longer overlap?  Or change the axis font size?  Or put fewer labels on the axis?  There is a finite amount of space on the axis, so you have to either make more space, shrink the labels, or draw fewer of them.


-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Andrew McFadden
Sent: Tuesday, May 03, 2011 5:05 PM
To: r-help at r-project.org
Subject: [R] Overlapping x axes using Lattice

Hi R users

I apologise in advance for this question as I suspect it is simple and
perhaps others have had this problem. 
I am struggling to sort out how to fix the x axes so that the labels
don't overlap.

I have put the following example together to show my problem.

library(lattice)

titre <- as.factor(rep(c(10999,20999,30999,40999,50999,60999, 
20000,40000,45000,50000,70000,80000),c(2,2,2,2,1,1,2,2,2,2,1,1)))
test<-rep(c("BVD","HSD"),c(10,10))
age<-as.factor(rep(c(1,2,3,4),c(5,5,5,5)))

pesti<-data.frame(titre,test,age)

histogram(~pesti[,1]|pesti[,2]+ pesti[,3]
,alternating=TRUE,tick.number=1,
stack=TRUE,type = "count", xlab="VNT",rot=c(180,180),draw=FALSE)

Thank you in advance.

Andy

Andrew McFadden MVS BVSc
Incursion Investigator
Investigation & Diagnostic Centres - Wallaceville Biosecurity New 
Zealand Ministry of Agriculture and Forestry

Phone 04 894 5600 Fax 04 894 4973 Mobile 029 894 5611 Postal address: 
Investigation and Diagnostic Centre- Wallaceville Box 40742 Ward St 
Upper Hutt





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