If you don't mind using an external (but very popular) graphics package known as ggplot2 it's super easy:
https://learnr.wordpress.com/2010/01/26/ggplot2-quick-heatmap-plotting/ I'm sure it can be done in base graphics as well, but I'll leave that to someone else. It's also well implemented in gplots::heatmap.2 (that is, the heatmap.2 function from the gplots package which, name notwithstanding, is unrelated to ggplot2). Run if(!require(gplots)) {install.packages("gplot"); library(gplot)} example(heatmap.2) for some examples. Michael On Mon, Jan 30, 2012 at 10:47 AM, koushik gangavaram <kgangava...@gmail.com> wrote: > Hello all , > > I am beginner and new to this -R world. I have heard much about R and > started working on it. > > I have some data of 20 business applications( y -axis) and Months( x-axis) > and values as their score for every month . I tried to generate a heatmap > with this data and got some good results. Can some one help me on how to > generate the legend next to heatmap please... > > > can some one send me a sample code ..? > > > Some of the useful link that i found on web : > http://www.oga-lab.net/RGM2/func.php?rd_id=gplots:heatmap.2 > > > Thanks in advance. > > [[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.
