On Tue, 2006-10-31 at 22:12 +0800, yang baohua wrote: > Thanks > your reply is helpful > but i want to draw two graphics on one window to compare them > so i want to draw one then draw another with different color on the > same window > Can you tell me how to do so > Waiting for your kind reply
Please reply-all to ensure others on the list see the full thread. Again, it is not clear exactly (but that's me being dense probably) what you want. I see two options: 1) Side by side plots par(mfrow = c(1, 2)) plot(rnorm(100), rnorm(100)) plot(runif(100), rnorm(100), col = "red") par(mfrow = c(1, 1)) or 2) overplotting one set of points on another plot(rnorm(100), rnorm(100)) points(runif(100), rnorm(100), col = "red") If 1), see ?par (and ?layout and ?split.screen for alternative ways to splitting up a plotting device into n plotting regions), and if 2), see ?points and ?lines, and I strongly suggest you read the R manual "An Introduction to R" that came with R, especially section 12 on Graphics. HTH G > > > 2006/10/31, Gavin Simpson <[EMAIL PROTECTED]>: > On Tue, 2006-10-31 at 21:36 +0800, yang baohua wrote: > > Sorry to disturb you, but can you help me to solve one > little problem? > > I want to draw a graphic after another with R > > but I cannot find the first one after that. > > Do you know the command to hold the graphic with R? > > I remember with Matlab you may use "hold on". > > Thanks. > > > > > > You don't say which OS. On MS Windows one can turn on a > history of plots > to the graphics device and replay your plots - it is in the > menu bar for > example. > > In all OSes, you can start up a new device to take the plot - > which is > what Matlab does IIRC, so you have two or more plot windows on > screen at > any one time. This is done like this: > > plot(1:10) > x11() > plot(1:20) > x11() > plot(rnorm(100)) > > see ?Devices > > You can set a device to be active, i.e. switch around between > plotting > windows using dev.set(), e.g.: > > > dev.cur() # example from above leaves device 4 active > X11 > 4 > > dev.set(3) # switch to device > > dev.cur() # check > X11 > 3 > > plot(sort(rnorm(100))) # plot something new on this device > > Is this what you were looking for? > > HTH > > G > -- > %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~ > %~%~%~% > Gavin Simpson [t] +44 (0)20 7679 0522 > ECRC & ENSIS, UCL Geography, [f] +44 (0)20 7679 0565 > Pearson Building, [e] > gavin.simpsonATNOSPAMucl.ac.uk > Gower Street, London [w] > http://www.ucl.ac.uk/~ucfagls/ > UK. WC1E 6BT. [w] > http://www.freshwaters.org.uk > %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~ > %~%~%~% > > > > > -- > Baohua Yang > Department of Automation, Tsinghua University > 228A, Zijing Bldg. No.2, Tsinghua Univ. > Beijing, 100084, P.R.China > Tel. 010-51532228 > Email:[EMAIL PROTECTED] -- %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% Gavin Simpson [t] +44 (0)20 7679 0522 ECRC & ENSIS, UCL Geography, [f] +44 (0)20 7679 0565 Pearson Building, [e] gavin.simpsonATNOSPAMucl.ac.uk Gower Street, London [w] http://www.ucl.ac.uk/~ucfagls/ UK. WC1E 6BT. [w] http://www.freshwaters.org.uk %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% ______________________________________________ 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.