Re: [R] Switching the order of legend boxes in a lattice bar graph

From: Markus Gesmann <Markus.Gesmann_at_libero.uk.com>
Date: Fri, 13 Jun 2008 12:54:22 +0100

Hi Bob,

Would this:

mykey <- list(
rectangles = list(col=c("dark blue","light blue") ),  text=list(lab=c("No","Yes")),x = .6, y = .7, corner = c(0, 0))

barchart(Freq ~ Status | which, groups=group, data=stuff, stack=TRUE, as.table=TRUE, layout=c(2,2), skip=c(F,T,F,F),scales=list(x=list(relation="free")), ylab="patients", main="Figure 1: X by district", par.settings=list(superpose.polygon=list(col=c("light blue", "dark blue"))), key=mykey)

Regards,

Markus

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From: r-help-bounces_at_r-project.org [mailto:r-help-bounces_at_r-project.org] On Behalf Of Bob Green Sent: 13 June 2008 12:14
To: r-help_at_r-project.org
Subject: [R] Switching the order of legend boxes in a lattice bar graph

I suspect there is a simple solution to this problem, but have been unable to find it. Below is some code that I have run to create 3 lattice graphs. I have been asked to change the legend so that the 'No' and dark blue are above "Y" and light blue in the legend to mirror the stacked bars in the graph which feature dark blue above light blue.

I have tried changing the data as well as the order of the legend text, without success. Any assistance is much appreciated,

regards

Bob Green

library(lattice)
SNFP1 <- as.table(matrix(c(4,1, 4,4, 1,3, 2,7, 1,6, 0,4), ncol = 6, dimnames = list(group=c("Y","No"), Status=c("A","B", "C", "D", "E", "F"))))

barplot(SNFP1, beside=FALSE, legend=TRUE, ylim=c(0, 60), ylab="N of patients", main ="district 1", col=c("light blue", "dark blue"))

# "A","B", "C", "D", "E", "F"

SNFP2 <- as.table(matrix(c(3,7, 1,5, 0,1, 0,1), ncol = 4, dimnames = list(group=c("Y","No"), Status=c("G","H", "I", "J"))))

barplot(SNFP2, beside=FALSE, legend=TRUE, ylim=c(0, 60), ylab="N of patients", main ="district 2", col=c("light blue", "dark blue"))

# "G", "H", "I", "J",

SNFP3 <- as.table(matrix(c(3,0, 0,2, 3,4), ncol = 3, dimnames = list(group=c("Y","No"), Status=c("K","L", "M"))))

barplot(SNFP3, beside=FALSE, legend=TRUE, ylim=c(0, 60), ylab="N of patients", main ="district 3", col=c("light blue", "dark blue"))

```df1 <- as.data.frame(t(SNFP1))
df2 <- as.data.frame(t(SNFP2))
df3 <- as.data.frame(t(SNFP3))
```

stuff <- make.groups(A=df1, B=df2, C=df3)

# simple version

barchart(Freq ~ Status | which, groups=group, data=stuff, stack=TRUE,scales=list(x=list(relation="free")), auto.key=TRUE)

barchart(Freq ~ Status | which, groups=group, data=stuff, stack=TRUE, as.table=TRUE, layout=c(2,2),
skip=c(F,T,F,F),scales=list(x=list(relation="free")), ylab="patients", main="Figure 1: X by district",
par.settings=list(superpose.polygon=list(col=c("light blue", "dark blue"))), auto.key=list(x = .6, y = .7, corner = c(0, 0)))

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