HI am plotting different density plots in one graph each with a different color. And i want to add labels to plot mentioning which color belongs to which data series. p2 <- qplot(corArms, data = data1, geom = "density", adjust=0.4, main="Arms Correlation All") + layer(data=data2, geom="density", adjust=0.4, color=I(2)) + layer(data=data3, geom="density", adjust=0.4, color=I(3)); how can i add such a legend. Any pointers? thanks a million Mo. [[alternative HTML version deleted]]
On Tue, 2009-08-04 at 20:16 -0700, Mohan S wrote:> HI > > am plotting different density plots in one graph each with a different > color. > > And i want to add labels to plot mentioning which color belongs to which > data series. > > p2 <- qplot(corArms, data = data1, geom = "density", adjust=0.4, main="Arms > Correlation All") + > layer(data=data2, geom="density", adjust=0.4, color=I(2)) + > layer(data=data3, geom="density", adjust=0.4, color=I(3)); > > how can i add such a legend. Any pointers?Hi Mo. Perhaps smartlegend in gplots may be what you are looking for. The example below might _not_ be close to what you demonstrate above - it's just an example. # install gplots if not installed library(gplots) # plot a density plot(density(mod.b2.06, from=0, to=6000), main="Density plots for both the pre- & postfire MODIS bands 2, 6 and 7", col="magenta", lty=2, lwd=2) # add another one lines(density(mod.b2.07, from=0, to=6000), col="magenta4", lty=1, lwd=2) # example of smartlegend smartlegend(x="right", y="top", c("Prefire MODIS band 2", "Postfire MODIS band 2"), col=c("magenta", "magenta4"), lty=2:1, lwd=2, cex=1.5) Hope this helps. Kindest regards, Nikos
Dear Mo, This is rather easy. Add an ID to each data series, rbind them into one data.frame and use the colour argument of qplot. data1 <- data.frame(corArms = rnorm(1000)) data2 <- data.frame(corArms = rnorm(3000, sd = 0.5)) data3 <- data.frame(corArms = rnorm(2000, sd = 2)) data1$ID <- "Data 1" data2$ID <- "Data 2" data3$ID <- "Data 3" dataset <- rbind(data1, data2, data3) library(ggplot2) qplot(corArms, data = dataset, colour = ID, geom = "density", adjust=0.4, main="Arms Correlation All") HTH, Thierry ------------------------------------------------------------------------ ---- ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest Cel biometrie, methodologie en kwaliteitszorg / Section biometrics, methodology and quality assurance Gaverstraat 4 9500 Geraardsbergen Belgium tel. + 32 54/436 185 Thierry.Onkelinx at inbo.be www.inbo.be To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey -----Oorspronkelijk bericht----- Van: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] Namens Mohan S Verzonden: woensdag 5 augustus 2009 5:16 Aan: r-help at r-project.org Onderwerp: [R] labeling in qplot HI am plotting different density plots in one graph each with a different color. And i want to add labels to plot mentioning which color belongs to which data series. p2 <- qplot(corArms, data = data1, geom = "density", adjust=0.4, main="Arms Correlation All") + layer(data=data2, geom="density", adjust=0.4, color=I(2)) + layer(data=data3, geom="density", adjust=0.4, color=I(3)); how can i add such a legend. Any pointers? thanks a million Mo. [[alternative HTML version deleted]] ______________________________________________ R-help at 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. Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver weer en binden het INBO onder geen enkel beding, zolang dit bericht niet bevestigd is door een geldig ondertekend document. The views expressed in this message and any annex are purely those of the writer and may not be regarded as stating an official position of INBO, as long as the message is not confirmed by a duly signed document.