Hi, a colleague of mine encountered some unexpected behavior regarding the postscript output from R. It's difficult for me to tell whether or not this is an R problem or a ghostview/gv/interpreter problem. Just to note, I think it's exactly the same situation reported here:
http://finzi.psych.upenn.edu/R/Rhelp02/archive/25436.html
The following code produces a working plot (no problems, as far as I can see):
par(mfrow = c(2,2)) plot.new() plot(1:10, 1:10, xlab = "", ylab = "") plot(1:10, 1:10, xlab = "", ylab = "") plot(1:10, 1:10, xlab = "", ylab = "") dev.copy2eps(file = "plot1.eps")
However, the following code, which appears on the screen to be identical to the above plot, generates an EPS file which ghostview/gv displays as blank.
par(mfrow = c(2,2), mfg = c(1,2)) plot(1:10, 1:10, xlab = "", ylab = "") plot(1:10, 1:10, xlab = "", ylab = "") plot(1:10, 1:10, xlab = "", ylab = "") dev.copy2eps(file = "plot2.eps")
If I use postcript() directly instead of dev.copy2eps(), plot1 is again fine, and plot2 appears fine when viewed in gv. However, when plot2 is included into a LaTeX file (via \includegraphics), it is upside-down and backwards and resized.
Has anyone encountered such behavior before? When I run a diff on plot1.eps and plot2.eps (generated by dev.copy2eps) it looks like there is an entire chunk of code in plot1.eps that doesn't exist in plot2.eps.
The problem was originally identified on Windows but it happens on Linux too.
Any suggestions would be greatly appreciated.
-roger
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