Dear R wizards, I am seeking advice on graphics in R. Specifically, how to manipulate the size and save a plot I have produced using the LDheatmap library. I confess I am relatively new to graphics in R, but I would greatly appreciate any suggestions you may have.
LDheatmap produces a coloured triangular matrix of pairwise associations between 600 genetic markers in my dataset. Initially the graphical output was confined to the computer screen, such that each pairwise marker association was displayed as approximately 1 pixel (too small for me to interpret). I have successfully managed to play with the LDheatmap function to enlarge the size of viewport by changing the following code in LDheatmap #From heatmapVP <- viewport(width = unit(0.8, "snpc"), height = unit(0.8, "snpc"), name=vp.name) #To heatmapVP <- viewport(width = unit(25, "inches"), height = unit(25, "inches"), name=vp.name) This produces a much larger plot (so big that the majority is not seen on the screen). I would like to save the entire thing so that I can import it into photoshop or some other image software. My problem is that when I save using the R graphics console (File->Save As->bmp), it only saves the section I can see on the screen. Any suggestions on how to save the whole plot or manipulate the plot so I get higher resolution would be much appreciated. Thanks for your help in advance, Felicity. _______________________________________ Dr Felicity Jones Department of Developmental Biology Stanford University School of Medicine Beckman Center 279 Campus Drive Stanford CA 94305-5329 USA ______________________________________________ R-help@stat.math.ethz.ch 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.