How to create following chart for visualizing multivariate time series

"Henrique Dallazuanna" <wwwhsd at gmail.com> wrote in
news:da79af330803011508u4cd31c96j9584ace16cca697e at mail.gmail.com:
This works for me:

x <- y <- seq(-4*pi, 4*pi, len=27)
r <- sqrt(outer(x^2, y^2, "+"))
library(lattice)
levelplot(r, colorkey=list(col=gray((0:32)/32)),
    col.regions=(col=gray((0:32)/32)))
Works for me as well.
'r' is a matrix for you?
It was the vector created by the first levelplot() example. I had not 
run the code of Megh Dal. 

When I hastily looked at the help page and saw that "colorkey" was 
supposed to be a logical, I assumed that the list argument was throwing 
the error. If I had read the full text I would have seen that a list 
argument was also valid. This gives what appears to me to be identical 
success, but maybe it has risks that I don't understand:

levelplot(r, colorkey=TRUE,
     col.regions=(col=gray((0:32)/32)))

Thanks;
David Winsemius
On 01/03/2008, David Winsemius <dwinsemius at comcast.net> wrote:
"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
level 
plot
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/itlWOv
uuO 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?
 >
 >

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How to create following chart for visualizing multivariate time series

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