I am using the code example from the R graph gallery to look at a
cloud plot:
require(lattice)
data(iris)
print(cloud(Sepal.Length ~ Petal.Length * Petal.Width, data = iris,
groups = Species, screen = list(z = 20, x = -70),
perspective = FALSE,
key = list(title = "Iris Data", x = .15, y=.85, corner =
c(0,1),
border = TRUE,
points = Rows(trellis.par.get("superpose.symbol"), 1:3),
text = list(levels(iris$Species)))))
Now, in the example on the webpage this comes out with a nice gray
background that makes things easier to see. Mine comes out with a
white, potentially transparent background and also the point colors
have changed.
How do I get the nice gray color back?
Thanks!
Karin
--
Karin Lagesen, PhD student
karin.lagesen at medisin.uio.no
http://folk.uio.no/karinlag
Karin Lagesen <karin.lagesen at medisin.uio.no> wrote in news:ypx6prsixgly.fsf at alanine.uio.no:> I am using the code example from the R graph gallery to look at a > cloud plot: > > require(lattice) > data(iris) > print(cloud(Sepal.Length ~ Petal.Length * Petal.Width, data = iris, > groups = Species, screen = list(z = 20, x = -70), > perspective = FALSE, > key = list(title = "Iris Data", x = .15, y=.85, corner > c(0,1), border = TRUE, > points = Rows(trellis.par.get("superpose.symbol"), 1:3), > text = list(levels(iris$Species))))) > > Now, in the example on the webpage this comes out with a nice gray > background that makes things easier to see. Mine comes out with a > white, potentially transparent background and also the point colors > have changed. > > How do I get the nice gray color back?I think the grey obscures the plot, but with some searching of the help files, displaying the rather extensive list from trellis.par.get(name = NULL) ... and then finding "Graphical Parameters for Trellis Displays", this seems to do what's desired, ... background <- trellis.par.get("background") background$col <- "grey" trellis.par.set("background", background)> print(cloud(Sepal.Length ~ Petal.Length * Petal.Width, data = iris,+ groups = Species, screen = list(z = 20, x = -70), + perspective = FALSE, + key = list(title = "Iris Data", x = .15, y=.85, corner = c(0,1), + border = TRUE, + points = Rows(trellis.par.get("superpose.symbol"), 1:3), + text = list(levels(iris$Species)) + ))) (I initially tried ... trellis.par.set(background$col, "grey") #fails) -- David Winsemius
On 4/22/08, Karin Lagesen <karin.lagesen at medisin.uio.no> wrote:> > > I am using the code example from the R graph gallery to look at a > cloud plot: > > require(lattice) > data(iris) > print(cloud(Sepal.Length ~ Petal.Length * Petal.Width, data = iris, > groups = Species, screen = list(z = 20, x = -70), > perspective = FALSE, > key = list(title = "Iris Data", x = .15, y=.85, corner = c(0,1), > border = TRUE, > points = Rows(trellis.par.get("superpose.symbol"), 1:3), > text = list(levels(iris$Species))))) > > Now, in the example on the webpage this comes out with a nice gray > background that makes things easier to see. Mine comes out with a > white, potentially transparent background and also the point colors > have changed. > > How do I get the nice gray color back?Try: require(lattice) trellis.device(theme = standard.theme("x11")) # new device data(iris) print(cloud(Sepal.Length ~ Petal.Length * Petal.Width, data = iris, groups = Species, screen = list(z = 20, x = -70), <...> There is some history involved here that I won't go into (but is briefly alluded to in ?trellis.device). -Deepayan