3-d Proportions must sum to 1and are thus actually 2-d and should preferaby be plotted as a ternary plot. Several r packages will do this for you, e.g. package Ternary. Search "ternary plots" on rseek.org for others.
-- Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Tue, Dec 18, 2018 at 3:10 PM Jim Lemon <drjimle...@gmail.com> wrote: > Hi Tasha, > I may be right off the track, but you could plot RGB proportions on a > 3D plot. The easiest way I can think if would be to convert your 0-255 > values to proportions: > > rgb_prop<-read.table(text="Red Green Blue pct > 249 158 37 56.311 > 249 158 68 4.319 > 249 158 98 0.058 > 249 128 7 13.965 > 249 128 37 12.87 > 188 128 37 0.029 > 249 128 68 0.161 > 188 128 68 0.015 > 188 98 7 0.029 > 219 128 7 2.773 > 219 128 37 2.583 > 188 98 68 0.058 > 219 128 68 0.525 > 249 188 37 0.876 > 249 188 68 1.08 > 219 98 7 0.482 > 249 188 98 0.015 > 249 158 7 3.852",header=TRUE) > rgb_prop$Red<-rgb_prop$Red/255 > rgb_prop$Green<-rgb_prop$Green/255 > rgb_prop$Blue<-rgb_prop$Blue/255 > library(scatterplot3d) > scatterplot3d(rgb_prop[,1:3],cex.symbols=sqrt(rgb_prop[,4]), > color=rgb(rgb_prop[,1],rgb_prop[,2],rgb_prop[,3]),pch=19) > > then plot the RGB values on a 3D scatterplot. I have included > arguments to make the symbols the actual RGB colors that you specify > and their size proportional to the square root of the percentages. > > Jim > > On Wed, Dec 19, 2018 at 5:17 AM Tasha O'Hara <tasha.eil...@gmail.com> > wrote: > > > > Hello, > > > > I am trying to plot specific rgb color proportions of a marine specimen > in > > a stacked plot using R and I was looking for some help. I have several > > rgb proportions per specimen (an example of one is below). I've run into > > different examples of people using vegan or grDevices. Can anyone help > with > > this? > > > > Red Green Blue % > > 249 158 37 56.311 > > 249 158 68 4.319 > > 249 158 98 0.058 > > 249 128 7 13.965 > > 249 128 37 12.87 > > 188 128 37 0.029 > > 249 128 68 0.161 > > 188 128 68 0.015 > > 188 98 7 0.029 > > 219 128 7 2.773 > > 219 128 37 2.583 > > 188 98 68 0.058 > > 219 128 68 0.525 > > 249 188 37 0.876 > > 249 188 68 1.08 > > 219 98 7 0.482 > > 249 188 98 0.015 > > 249 158 7 3.852 > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > > and provide commented, minimal, self-contained, reproducible code. > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.