Hi, You could try grid.colorstrip() from the gridExtra package,
grid.colorstrip(ifelse(dat, "blue", "red")) or grid.raster(), which should be more efficient, grid.raster(matrix(ifelse(dat, "blue", "red")), interp=FALSE, width=unit(1,"npc"), height=unit(1,"npc")) HTH, baptiste On 15 July 2011 22:20, Nacho Caballero <nacho...@gmail.com> wrote: > Hi, I've been really struggling with this. > > If I have a vector like > dat <- c(0,0,0,0,1,1,1,0,0,0,1,1,0,0,0,1,0,0,0) > > I want to plot each element as a colored rectangle (red=1, blue=1) in the > right order, so they all stack up forming a vertical column on the graph. > Sort of like a building, with each floor in the appropriate color. > > Any ideas? > I've tried using ggplot and geom_tile, but my data has a million elements > and the plots take forever to generate. > I've also tried using a heatmap, but I need 2 columns at least, and I only > have 1. > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > 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 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.
