Re: [R] graphs with gradients of colors

AIL PROTECTED] On Behalf Of Van Dongen Stefan > Sent: Monday, September 17, 2007 7:37 AM > To: [EMAIL PROTECTED] > Subject: [R] graphs with gradients of colors > > Hi All, > > I would like to fill the area under a curve with a gradient > of colors. Are

Re: [R] graphs with gradients of colors

Van Dongen Stefan wrote: > Hi All, > > I would like to fill the area under a curve with a gradient of colors. Are > there any packages or trick I could use > > Hi Stefan, Chris has answered the question of how to define the polygons, so I'll have a shot at the gradient. The plotrix package

Re: [R] graphs with gradients of colors

You could use a loop and fill small polygons with colors. x<-seq(-3, 3, .01) y<-eval(expression(x^3-3*x)) plot(x,y, type="n", las=1) n<-length(x) # vertical bars for(i in 1:n) { polygon(c(x[i], x[i], x[i+1], x[i+1]), c(min(y), y[i], y[i+1], min(y)), border=0, col = rainbow(n)[i]) } ## or sp

Re: [R] graphs with gradients of colors

Maybe this information (from the R's father) can be of some help. http://www.stat.auckland.ac.nz/~ihaka/Graphics/index.html Van Dongen Stefan wrote: > > Hi All, > > I would like to fill the area under a curve with a gradient of colors. Are > there any packages or trick I could use > > Thank

[R] graphs with gradients of colors

Hi All, I would like to fill the area under a curve with a gradient of colors. Are there any packages or trick I could use Thanks Stefan Stefan Van Dongen Antwerp [[alternative HTML version deleted]] __ R-help@r-project.org mailing li