Glad to be of help. Peter
On Tue, Apr 9, 2019 at 10:03 PM Matthew Snyder <msnyder...@gmail.com> wrote: > You are not late to the party. And you solved it! > > Thank you very much. You just made my PhD a little closer to reality! > > Matt > > > > *Matthew R. Snyder* > *~~~~~~~~~~~~~~~~~* > PhD Candidate > University Fellow > University of Toledo > Computational biologist, ecologist, and bioinformatician > Sponsored Guest Researcher at NOAA PMEL, Seattle, WA. > matthew.snyd...@rockets.utoledo.edu > msnyder...@gmail.com > > > > [image: Mailtrack] > <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&;> > Sender > notified by > Mailtrack > <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&;> > 04/09/19, > 10:01:53 PM > > On Tue, Apr 9, 2019 at 9:37 PM Peter Langfelder < > peter.langfel...@gmail.com> wrote: > >> Sorry for being late to the party, but has anyone suggested a minor >> but important modification of the code from stack exchange? >> >> xyplot(mpg ~ wt | cyl, >> panel = function(x, y, ..., groups, subscripts) { >> pch <- mypch[factor(carb)[subscripts]] >> col <- mycol[factor(gear)[subscripts]] >> grp <- c(gear,carb) >> panel.xyplot(x, y, pch = pch, col = col) >> } >> ) >> >> From the little I understand about what you're trying to do, this may >> just do the trick. >> >> Peter >> >> On Tue, Apr 9, 2019 at 2:43 PM Matthew Snyder <msnyder...@gmail.com> >> wrote: >> > >> > I am making a lattice plot and I would like to use the value in one >> column >> > to define the pch and another column to define color of points. >> Something >> > like: >> > >> > xyplot(mpg ~ wt | cyl, >> > data=mtcars, >> > col = gear, >> > pch = carb >> > ) >> > >> > There are unique pch points in the second and third panels, but these >> > points are only unique within the plots, not among all the plots (as >> they >> > should be). You can see this if you use the following code: >> > >> > xyplot(mpg ~ wt | cyl, >> > data=mtcars, >> > groups = carb >> > ) >> > >> > This plot looks great for one group, but if you try to invoke two groups >> > using c(gear, carb) I think it simply takes unique combinations of those >> > two variables and plots them as unique colors. >> > >> > Another solution given by a StackExchange user: >> > >> > mypch <- 1:6 >> > mycol <- 1:3 >> > >> > xyplot(mpg ~ wt | cyl, >> > panel = function(x, y, ..., groups, subscripts) { >> > pch <- mypch[factor(carb[subscripts])] >> > col <- mycol[factor(gear[subscripts])] >> > grp <- c(gear,carb) >> > panel.xyplot(x, y, pch = pch, col = col) >> > } >> > ) >> > >> > This solution has the same problems as the code at the top. I think the >> > issue causing problems with both solutions is that not every value for >> each >> > group is present in each panel, and they are almost never in the same >> > order. I think R is just interpreting the appearance of unique values >> as a >> > signal to change to the next pch or color. My actual data file is very >> > large, and it's not possible to sort my way out of this mess. It would >> be >> > best if I could just use the value in two columns to actually define a >> > color or pch for each point on an entire plot. Is there a way to do >> this? >> > >> > Ps, I had to post this via email because the Nabble site kept sending >> me an >> > error message: "Message rejected by filter rule match" >> > >> > Thanks, >> > Matt >> > >> > >> > >> > *Matthew R. Snyder* >> > *~~~~~~~~~~~~~~~~~* >> > PhD Candidate >> > University Fellow >> > University of Toledo >> > Computational biologist, ecologist, and bioinformatician >> > Sponsored Guest Researcher at NOAA PMEL, Seattle, WA. >> > matthew.snyd...@rockets.utoledo.edu >> > msnyder...@gmail.com >> > >> > >> > >> > [image: Mailtrack] >> > < >> https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&; >> > >> > Sender >> > notified by >> > Mailtrack >> > < >> https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&; >> > >> > 04/09/19, >> > 1:49:27 PM >> > >> > [[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. >> > [[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.
