Hi
Peter Dalgaard wrote: > [EMAIL PROTECTED] writes: > > >>Full_Name: Stephen Harker >>Version: 1.80 >>OS: linux (Yellow Dog 3.0 on ppc) >>Submission from: (NULL) (130.194.13.101) >> >> >>In creating a postscript file from a set of data in which the points are >>plotted >>using `points()' and lines drawn using `lines()' I have found since upgrading >>from R version 1.4? to 1.8 that the two sets do not coinicide completely. This >>is best illustrated by a simple example given below. Here the X11() output >>appears correctly. However, the postscript output shows that the lines and >>points no >>longer coincide on the right hand side, whereas the left hand side is perfect. >>Output to other devices such as pdf is perfect. Possibly this reflects a >>different scaling being applied when points() or lines() are selected. >> >>One reason I found this is that I use a number of scripts in R to plot and >>multiplot data sets from x-ray and neutron powder diffraction analysis (and >>Rietveld fitting of this data in particularl). In these points() is used to >>plot the data and lines() to plot the refinement from the analysis. After >>upgrading I found these were >>misaligned. The example was created to mimic the problem. >> >>%%% Example follows: >>dtwoth <- seq(from=20,to=80,len=1024) >>dcount <- rnorm(dtwoth) # >> >>postscript(file="R-test2.ps",horizontal=FALSE, >> pointsize=18, onefile=FALSE, >> family="Helvetica", paper="a4") >> >>plot(dtwoth,dcount, >> xlim=c(min(dtwoth),max(dtwoth)),ylim=c(min(dcount),max(dcount)), >> yaxt="n",xaxs="i",yaxs="i",xlab="2theta",ylab="counts", >> type="n") >> >>lines(dtwoth,dcount) >>points(dtwoth,dcount) > > > [At the current rate, "1.80" would be about 36 years into the future. > Latest version is 1.8.1.] > > I can't reproduce this with 1.8.0 on RedHat 8.0. Are you sure it isn't > your Postscript viewer that is playing tricks on you?? I can't reproduce this either, but in trying your script I wonder if you are not properly "finishing" the postscript plot by calling dev.off before viewing. If I run your script, then view R-test2.ps without quitting R, the last few points at the right end of the plot are missing (because the postscript file is not yet complete). If I then quit R (the postscript file is completed and closed), the postscript output looks just like the X11 version. Paul -- Dr Paul Murrell Department of Statistics The University of Auckland Private Bag 92019 Auckland New Zealand 64 9 3737599 x85392 [EMAIL PROTECTED] http://www.stat.auckland.ac.nz/~paul/ ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
