Marc Schwartz píše v Čt 16. 01. 2014 v 16:46 -0600: > On Jan 16, 2014, at 12:45 PM, Martin Weiser <weis...@natur.cuni.cz> wrote: > > > Dear listers, > > > > I would like to make stacked barplot, and to be able to define shading > > (density or angle) segment-wise, i.e. NOT like here: > > # Bar shading example > > barplot(VADeaths, angle = 15+10*1:5, density = 20, col = "black", > > legend = rownames(VADeaths)) > > > > The example has 5 different angles of shading, I would like to have as > > many possible angle values as there are segments (i.e. 20 in the > > VADeaths example). > > I was not successful using web search. > > Any advice? > > > > Thank you for your patience. > > With the best regards, > > Martin Weiser > > > You could do something like this: > > # Get the dimensions of VADeaths > > dim(VADeaths) > [1] 5 4 > > # How many segments? > > prod(dim(VADeaths)) > [1] 20 > > > Then use that value in the barplot() arguments as you desire, for example: > > barplot(VADeaths, angle = 15 + 10 * 1:prod(dim(VADeaths)), > density = 20, col = "black", legend = rownames(VADeaths)) > > > or wrap the barplot() function in your own, which pre-calculates the values > and then passes them to the barplot() call in the function. > > See ?dim and ?prod > > Be aware that a vector (eg. 1:5) will be 'dim-less', thus if you are going to > use this approach for a vector based data object, you would want to use > ?length > > Regards, > > Marc Schwartz >
Hello, thank you for your attempt, but this does not work (for me). This produces 5 angles of shading, not 20. Maybe because of my R version (R version 2.15.1 (2012-06-22); Platform: i486-pc-linux-gnu (32-bit))? Thank you. Regards, Martin Weiser ______________________________________________ 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.
