Hi all,
I've been trying (unsuccessfully) to modify an xyplot I created using the
lattice package. I would like to change default strip colors and locations.
I started with numeric data in 4 columns, which look like this:
0.25 2 1 32
0.25 2 2 30
0.25 2 3 27
0.25 2 4 23
0.25 2 5 17
0.25 3 1 30
0.25 3 2 29
0.25 3 3 26
0.25 3 4 21
0.25 3 5 15
0.5 2 1 23
0.5 2 2 23
0.5 2 3 22
0.5 2 4 18
0.5 2 5 15
0.5 3 1 22
0.5 3 2 22
0.5 3 3 21
0.5 3 4 16
0.5 3 5 13
Here's what I've done so far:
library(lattice)
plotdata <- read.table(file="data.txt", header=FALSE)
attach(plotdata)
frac.f <- factor(V1)
stdev.f <- factor(V2)
levels(frac.f) <- paste("f=",levels(frac.f), sep="")
levels(stdev.f) <- paste("s=", levels(stdev.f), sep="")
xyplot(V4~V3|frac.f*stdev.f, aspect=3/4, xlab="Reads as evidence", ylab="Total
incorrect")
detach(plotdata)
Conditional variable values now appear as two stacked strips at the top of each
panel. I'd like to move one to the left and also change strip colors.
I tried the following but it didn't produce the desired result
xyplot(V4~V3|frac.f*stdev.f, aspect=3/4, xlab="Min number of reads",
ylab="Number of misjoins", strip=strip.custom(which.given=1, bg="skyblue"),
strip.left=strip.custom(which.given=2,bg="yellow"))
This changes the colors but also does the following
- positions the left strips slightly away from the respective panels
- all strip labels and values reflect only one conditional variable (s=2, s=3,
etc.)
Any help would be much appreciated
Thanks,
Shankar
Postdoctoral Fellow
National Human Genome Research Institute
NIH
Bethesda, MD
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