How to create following chart for visualizing multivariate time series

"Henrique Dallazuanna" <wwwhsd at gmail.com> wrote in
news:da79af330802290329y4c0ad78fkc483303229a868ae at mail.gmail.com:

library(lattice)
levelplot(r, colorkey=list(col=gray((0:32)/32)),
     col.regions=(col=gray((0:32)/32)))

When I try that example, I get an error, even after updating lattice.

levelplot(r, colorkey=list(col=gray((0:32)/32)),

+  col.regions=(col=gray((0:32)/32)))
Error in UseMethod("levelplot") : no applicable method for "levelplot"

If I simply change colorkey=FALSE to colorkey=TRUE in the first levelplot
help page example, I have what looks to me as "success".

levelplot(z~x*y, grid, cuts = 50, scales=list(log="e"), xlab="",
          ylab="", main="Weird Function", sub="with log scales",
          colorkey = TRUE,
          region = TRUE)

--
David Winsemius

On 29/02/2008, Megh Dal <megh700004 at yahoo.com> wrote:

Hi Jim, i think you could not get my point. I did not want to put
red-blue color there. I want to put a pallet which will describe
the values of r. please have a look on following :

http://bp0.blogger.com/_k3l6qPzizGs/RvDVglPknRI/AAAAAAAAAKo/itlWOvuuO
tI/s1600-h/pairwise_kl_window60.png. Please see how a color pallate
is added on the right side of this plot describing the value of red
color, value of blue color etc.

  Is there any solution?

  Regards,


 jim holtman <jholtman at gmail.com> wrote:
  Try something like this:

 require(grDevices) # for colours
 x <- y <- seq(-4*pi, 4*pi, len=27)
 r <- sqrt(outer(x^2, y^2, "+"))
 image(x, y, r, col=gray((0:32)/32))
 colors <- colorRampPalette(c('red', 'yellow', 'blue')) # create
 you color spectrum
 image(x,y,r, col=colors(100))



On Thu, Feb 28, 2008 at 9:28 PM, Megh Dal wrote:

 > I used ?image function to do that, like below :
 >
 > require(grDevices) # for colours
 > x <- y <- seq(-4*pi, 4*pi, len=27)
 > r <- sqrt(outer(x^2, y^2, "+"))
 > image(x, y, r, col=gray((0:32)/32))
 >
 > However my next problem to add a color pallet for color
 > description [as shown in following link]. If anyone here tell

  me how to do that, it will be good for me.

 >

Megh Dal wrote: Hi all,

 > Can anyone here please tell me whether is it possible to produce
 > a chart displayed in http://www.datawolf.blogspot.com/ in R for

visualizing multivariate time series? If possible how?

 >
 >