search for: plotdensity

Hallo, I have a question to plotDensity and do not understand what stand behind. In a density plot the x-axis is the signal intensity but for what stands than density on the y-axis? Here I have the values 0.00-0.30 Can anyone discribe it by his own words? I do not understand the help. Thanks, Conny --

...will demonstrate my concern. If you do not see overlap use a larger value for plot density. The plot I am attempting with the real data has a density of 64 providing space adjacent to the point. In the real data there are few clusters that have tighter spacing than produced in the example below. A plotdensity value of 150 or so will give a better visualization of the issue. Thanks. # EXAMPLE VIEW plotdensity<-150 x1<-rnorm(plotdensity) y1<-rnorm(plotdensity) plot(x1,y1) textLabels <- as.character(1:plotdensity) text(x1,y1,textLabels,pos=1) == I have also reviewed sunflowerplot.

Hello, I have another question. I would like to plot something within a self written function (plotdensity) called by tapply t <- tapply(mat, classes, plotdensity) Now I would like to add each plot the class/level as title. How can I do this? Antje

Hello, I have some problems with sapply. I wanted to do the following: s <- sapply(filelist, function(x) { if(file.exists(x)) { ... return( list(density(file$V1)$x, density(file$V1)$y)) } else { print(paste("plotDensity ERROR - File does not exist: ",x,sep="")) return( NULL) } }) if(is.null( - ??? - )) { print("no plot") } That means, I try to read every file and to get some data from it. It may happen, that the file does not exist and then I don't want to plot anything....