On Dec 4, 2009, at 10:17 PM, Xin Ge wrote:

@ Francisco: Thanks, it worked.

@ All: I'm able to change the colors of legend using following code:

 par.settings=simpleTheme(col=c(451,26,652)),
 key=list(space="right", cex=.96,
 text=list(c("A","B","C")),
 rectangles=list(size=1.7, border="white", col = c(451,26,652)))

*Q. Using the following code, how can I change the color of
boxes where "SITE" names are written -- by default its pink. *
**
Assuming that by the "boxes" you are referring to what lattice terminology calls the "strips", then:

library(lattice)
barchart(yield ~ variety | site, data = barley,
groups = year, layout = c(1,6), stack = TRUE, # Add the following
         strip = strip.custom( bg="red"),
auto.key = list(points = FALSE, rectangles = TRUE, space = "right"),
       scales = list(x = list(rot = 45)))

HTH;
David.

Thanks,
Xin


On Fri, Dec 4, 2009 at 8:04 PM, Francisco J. Zagmutt <
gerifalt...@hotmail.com> wrote:

Hello Xin,

Take a look at the examples under ?print.trellis

Using your original example, you could use:

require(lattice)
p1=barchart(yield ~ variety | site, data = barley,

       groups = year, layout = c(1,6),
       ylab = "Barley Yield (bushels/acre)",
       scales = list(x = list(abbreviate = TRUE,
                     minlength = 5)))
p2=barchart(yield ~ variety | site, data = barley,

       groups = year, layout = c(1,6), stack = TRUE,
       ylab = "",
scales = list(x = list(rot = 45))) #I removed the legend and ylab
to make it look a bit better


print(p1, split=c(1,1,2,1), more=TRUE)
print(p2, split=c(2,1,2,1))


I hope this helps,

Francisco

Francisco J. Zagmutt
Vose Consulting
1643 Spruce St., Boulder
Boulder, CO, 80302
USA
www.voseconsulting.com

Xin Ge wrote:

Hi All,

I'm trying par(mfrow(c(1,2))) with barchart(), but its not working. Can I display two or more barcharts on a same page using some other function?
I'm
using following code --- where barchart() part is taken from help manual.

library(lattice)
par(mfrow=c(1,2))
barchart(yield ~ variety | site, data = barley,
       groups = year, layout = c(1,6),
       ylab = "Barley Yield (bushels/acre)",
       scales = list(x = list(abbreviate = TRUE,
                     minlength = 5)))
barchart(yield ~ variety | site, data = barley,
       groups = year, layout = c(1,6), stack = TRUE,
       auto.key = list(points = FALSE, rectangles = TRUE, space =
"right"),
       ylab = "Barley Yield (bushels/acre)",
       scales = list(x = list(rot = 45)))
par(mfrow=c(1,1))

Thanks,
Xin

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