Re: [R] plot points using circles filled half in red and half in blue.

On 03/28/2012 01:49 PM, alan wrote: I want to plot many points and want to use circles. The filling color depends on variable a. if a=1, then not fill if a=2 then fill with red, if a=3 then fill with blue, if a=4, fill half with red and half with blue. Can anyone tell me how to plot the case "a=4

Re: [R] plot points using circles filled half in red and half in blue.

I would use the my.symbols function from the TeachingDemos package (but then I might be a little bit biased), here is a simple example: library(TeachingDemos) x <- runif(25) y <- runif(25) z <- sample(1:4, 25, TRUE) ms.halfcirc2 <- function(col, adj=pi/2, ...) { theta <- seq(0, 2*pi, len

Re: [R] plot points using circles filled half in red and half in blue.

On Tue, Mar 27, 2012 at 10:49 PM, alan wrote: > I want to plot many points and want to use circles. The filling color > depends on variable a. if a=1, then not fill > if a=2 then fill with red, if a=3 then fill with blue, if a=4, fill > half with red and half with blue. Can anyone tell me how to p

Re: [R] plot points using circles filled half in red and half in blue.

On Wed, Mar 28, 2012 at 11:02 AM, Eik Vettorazzi wrote: > Hi Alan, > on an UTF-8 locale you can use \u25D6 and \u25D7, but you have to plot > group a=4 twice. The problem with that is that by default the two half-circles will be centred on the point location, so won't join look like a whole circl

Re: [R] plot points using circles filled half in red and half in blue.

Hi Alan, on an UTF-8 locale you can use \u25D6 and \u25D7, but you have to plot group a=4 twice. On Windows in a non-utf locale you can use a special Windows font: windowsFonts(wdg2=windowsFont("Wingdings 2")) plot(0:1,0:1) strh<-strheight("x")/2.02 points(x = 0.5, y = 0.75+strh/2,pch="¼",family

Re: [R] plot points using circles filled half in red and half in blue.

On 28/03/12 15:49, alan wrote: I want to plot many points and want to use circles. The filling color depends on variable a. if a=1, then not fill if a=2 then fill with red, if a=3 then fill with blue, if a=4, fill half with red and half with blue. Can anyone tell me how to plot the case "a=4"? Th

[R] plot points using circles filled half in red and half in blue.

I want to plot many points and want to use circles. The filling color depends on variable a. if a=1, then not fill if a=2 then fill with red, if a=3 then fill with blue, if a=4, fill half with red and half with blue. Can anyone tell me how to plot the case "a=4"? Thanks a lot _