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How to create following chart for visualizing multivariate time series
2 messages · Megh Dal, David Winsemius
Megh Dal <megh700004 at yahoo.com> wrote in news:698510.72905.qm at web58105.mail.re3.yahoo.com:
Let me take an artifical matrix : dat = matrix(rnorm(200*200), 200, 200) My goal is to visualize this matrix according to the procedure, described in previous mails. I took Mendelssohn's advice and got following advice :
It is unclear a) which emails, since you have been having an offlist
correspondence with Mendelssohn, and b) why Holtman's solution offered
two weeks ago is not satisfactory.
As a reminder, it was, with very slight modifications:
colkey <- colorRampPalette(c('red','blue'))(32)
levelplot(dat, colorkey=list(col=colkey),
col.regions=(col=colkey))
If the problem has changed then perhaps a new posting with a subject
line that matches the question and content that is self-contained would
be more effective.
David Winsemius > > ?plot.im > Z <- setcov(owin()) > plot(Z) .................... etc > > However I can not reproduce this example in my problem. How I can > change my data matrix 'dat' to 'Z' ? > > If anyone show me some light it would be great for me. > > Regards, > > Megh Dal <megh700004 at yahoo.com> wrote: > > > > Roy Mendelssohn <Roy.Mendelssohn at noaa.gov> wrote: Date: Thu, 28 Feb > 2008 20:55:23 -0800 From: Roy Mendelssohn <Roy.Mendelssohn at noaa.gov> > Subject: Re: [R] Fwd: Re: How to create following chart for > visualizing multivariate time series > To: Megh Dal <megh700004 at yahoo.com> > > What you are after is a colorbar. There is a colorbar option in the > GLAD package in Bioconductor. See also the response at: > > http://tolstoy.newcastle.edu.au/R/help/05/02/12896.html > > > > > HTH, > > > Roy M. > > On Feb 28, 2008, at 8:38 PM, Megh Dal 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/itlWO > vuuOtI/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. > > > Regards, > > > > > > > > > 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? > > > > > Regards, >