ggplot seq

Thanks Thierry: 
The use of levels is what I needed, thanks for your help.




 From: ONKELINX, Thierry <Thierry.ONKELINX at inbo.be>
 Subject: RE: [R] ggplot seq
 To: mazatlanmexico at yahoo.com, r-help at stat.math.ethz.ch
 Date: Friday, January 23, 2009, 3:01 AM
 Dear Felipe,
 
 Provide a dummy sample if your dataset is big or
 confidential. The actual values are not that important to figure out what
 kind of plot you want.
 How did you code Week? Numeric? Try convert it into a
 factor with levels = c(27:52, 1:26). And then set the breaks to seq(1, 52, by= 2).
 
 WFBox <- data.frame(Week = rep(1:52, 10), FL = rnorm(520))
 WFBox$fWeek <- factor(WFBox$Week, levels = c(27:52, 1:26))
 library(ggplot2)
 ggplot(WFBox, aes(fWeek, FL)) + geom_boxplot(outlier.colour="pink",outlier.size=3,outlier.shape=21,fill=
 "goldenrod",colour="blue") + scale_x_discrete(breaks=c(seq(1,51,2)))
 
 HTH,
 
 Thierry
 
  ir. Thierry Onkelinx
 Instituut voor natuur- en bosonderzoek / Research Institute
 for Nature and Forest Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
 methodology and quality assurance
 Gaverstraat 4 9500 Geraardsbergen
 Belgium 
tel. + 32 54/436 185
 Thierry.Onkelinx at inbo.be  www.inbo.be

Onderwerp: [R] ggplot seq

I have dealt with this before and I can't remember how
it got resolved.
It is too much data to reproduce the example below(49.000
records) but
all I am after is trying to get the x axis breaks. I want
my x axis to
go from 27 to 51 and 1 to 25 by 2. I am trying to
concatenate the breaks
but it sorts the seq() in ascending order. Is there a way
to workaround
it? see scale_x_continuous below:

boxP <- ggplot(WFBox, aes(Week, FL,group=Week))
boxP +
geom_boxplot(outlier.colour="pink",outlier.size=3,outlier.shape=21,fill=
"goldenrod",colour="blue") +
scale_x_discrete(breaks=c(seq(27,51,2),seq(1,25,2)))

Felipe D. Carrillo  
Supervisory Fishery Biologist  
Department of the Interior  
US Fish & Wildlife Service  
California, USA