Hi BFD, ?geom_contour() *does* have helpful examples. Your Google-foo is weak: Searching for geom_contour brought me: http://ggplot2.tidyverse.org/reference/geom_contour.html as the first result.
HTH Ulrik On Mon, 9 Oct 2017 at 08:04 Big Floppy Dog <bigfloppy...@gmail.com> wrote: > Can someone please point me to an example with geom_contour() that uses a > function? The help does not have an example of a function, and also I did > not find anything from online searches. > > TIA, > BFD > > > > ----------------------------------------------------------------------------------------------- > > How about geom_contour()? > > Am So., 8. Okt. 2017, 20:52 schrieb Ranjan Maitra <mai...@email.com>: > > > Hi, > > > > I am no expert on ggplot2 and I do not know the answer to your question. > I > > looked around a bit but could not find an answer right away. But one > > possibility could be, if a direct approach is not possible, to draw > > ellipses corresponding to the confidence regions of the multivariate t > > density and use geom_polygon to draw this successively? > > > > I will wait for a couple of days to see if there is a better answer > posted > > and then write some code, unless you get to it first. > > > > Thanks, > > Ranjan > > > > > > On Sun, 8 Oct 2017 09:30:30 -0500 Big Floppy Dog <bigfloppy...@gmail.com > > > > wrote: > > > > > Note: I have posted this on SO also but while the question has been > > > upvoted, there has been no answer yet. > > > > > > > > > > https://stackoverflow.com/questions/46622243/ggplot-plot-2d-probability-density-function-on-top-of-points-on-ggplot > > > > > > Apologies for those who have seen it there also but I thought that this > > > list of experts may have someone who knows the answer. > > > > > > I have the following example code: > > > > > > > > > > > > require(mvtnorm) > > > require(ggplot2) > > > set.seed(1234) > > > xx <- data.frame(rmvt(100, df = c(13, 13))) > > > ggplot(data = xx, aes(x = X1, y= X2)) + geom_point() + > geom_density2d() > > > > > > > > > > > > It yields a scatterplot of X2 against X1 and a KDE contour plot of the > > > density (as it should). > > > > > > My question is: is it possible to change the contour plot to display > > > the contours > > > > > > of a two-dimensional density function (say dmvt), using ggplot2? > > > > > > The remaining figures in my document are in ggplot2 and therefore I > > > am looking for a ggplot2 solution. > > > > > > Thanks in advance! > > > > > > BFD > > > > > > [[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. > [[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.