Help with multiple barplots

Simon,

I think this is what you are looking for.

###Random Data
crime <- sample(c('agree' ,'disagree'), replace=TRUE, size=100)
guns <- sample(c('agree','disagree'), replace=TRUE, size=100)
climate <- sample(c('agree', 'disagree'), replace=TRUE, size=100)
gender <- sample(c('male','both' ,'female'), replace=TRUE, size=100)
age <- sample(c('old', 'neither', 'young'), replace=TRUE, size=100)

dat <- as.data.frame(cbind(crime, guns, climate, gender, age))
rm(crime, guns, climate, gender, age)

opinion <-
  rbind(
    data.frame(table(dat[,4], dat[,1]), topic="crime", category="gender"),
    data.frame(table(dat[,4], dat[,2]), topic="guns", category="gender"),
    data.frame(table(dat[,4], dat[,3]), topic="climate", category="gender"),
    data.frame(table(dat[,5], dat[,1]), topic="crime", category="age"),
    data.frame(table(dat[,5], dat[,2]), topic="guns", category="age"),
    data.frame(table(dat[,5], dat[,3]), topic="climate", category="age")
    )


library(lattice)
barchart(Freq ~ Var1 | topic + category, groups=Var2, data=opinion,
stack=TRUE,
         layout=c(3,2), scales=list(x=list(relation="free")))


Rich

On Thu, Jan 31, 2013 at 10:42 AM, Simon Kiss <sjkiss at gmail.com> wrote:

Hello: I need to create a six barplots from data that looks pretty close
to what appears below. There are two grouping variables (age and gender)
and three dependent variables for each grouping variables.  I'm not really
familiar with trellis graphics, perhaps there is something that can do what
I need there, i don't know.
The thing is: I *need* these to appear on one row, with some way of
differentiating between the three barplots of one grouping variable and the
three from the other grouping variable.  It's for a grant application and
space is at a premium.  The width of everything can be about 7 inches wide
and the height maybe 2 to 2.5 inches. I also need an outer margin to place
a legend.  I can do this with the following using the layout command, but I
cannot figure out a nice way to differentiate the two groups of variables.
 I'd like to find a way to put a little bit of space between the three from
one grouping variable and the three from another grouping variable.

If anyone has any thoughts, I'd be very grateful. Yours truly, Simon J.
Kiss

###Random Data
crime<-sample(c('agree' ,'disagree'), replace=TRUE, size=100)
guns<-sample(c('agree','disagree'), replace=TRUE, size=100)
climate<-sample(c('agree', 'disagree'), replace=TRUE, size=100)
gender<-sample(c('male','both' ,'female'), replace=TRUE, size=100)
age<-sample(c('old', 'neither', 'young'), replace=TRUE, size=100)
dat<-as.data.frame(cbind(crime, guns, climate, gender, age))
###Code I'm working with now
layout(matrix(c(1,2,3,4,5,6), c(1,6)))
barplot(prop.table(table(dat$guns, dat$gender), 2))
barplot(prop.table(table(dat$crime, dat$gender), 2))
barplot(prop.table(table(dat$climate, dat$gender), 2))
barplot(prop.table(table(dat$guns, dat$gender), 2))
barplot(prop.table(table(dat$crime, dat$age), 2))
barplot(prop.table(table(dat$climate, dat$age), 2))

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