On Mon, Mar 10, 2008 at 10:19:01AM -0000, michael watson (IAH-C) wrote: > I'd recommend outputting either as pdf or as a windows metafile > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Karin Lagesen > Sent: 10 March 2008 09:54 > To: r-help@r-project.org > Subject: [R] hclust graphics - plotting many points > > > Hello. > > I have a distance matrix with lots of distances that I use hclust to > organise. I then plot the results using the plot method of hclust. > > However, the plot itself takes around 20 mins to make due to there > being ~700 things in the matrix that I have distances for. I thus > would like to dump this to some graphics format which will let me > examine this further. > > I tried dumping it to postscript: > > postscript("myfile.ps", height = 50, pointsize=5) > plot(my_hc_object) > dev.off() > > What happens is that since most of the items in the matrix have a > distance of zero to something everything just becomes a black smear on > the bottom where I cannot distinguish anything from anything else. I > thus tried increasing the heigth and/or width and also downscaling the > pointsize. None of these improved anything much. > > So, now I am wondering if any of you have any tips for how I can get > something like I get in the x11() window which I can also store and > potentially show other people.
Don't you have the problem of too small distances in the X11() window? I've had similar problems with a graph in graphviz, where I found it easier to get what I wanted using a png-driver instead of postscript driver. Png doesn't scale well, but it might be worth a try. png(file="myfile.png", width=3000, height=2250) plot(my_hc_object) dev.off() -- Hans Ekbrand (http://sociologi.cjb.net) <[EMAIL PROTECTED]> GPG Fingerprint: 1408 C8D5 1E7D 4C9C C27E 014F 7C2C 872A 7050 614E
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