On Sat, 13 Feb 2010, David Winsemius wrote:
On Feb 13, 2010, at 5:04 PM, David Winsemius wrote:
On Feb 13, 2010, at 4:08 PM, Hannes Nietnagel wrote:
Thanks David for your reply!
species.n <- as.numeric(iris$Species)
png("test.png")
plot(iris, col = species.n)
dev.off()
That works fine for the png. But I still get the message:
postscript
3
What does it mean? Is there something wrong with my postscript?
I think it is telling you which graohics device is open for plotting.
I still cannot produce a decent .eps file.
From a fresh R session:
?quartz
starting httpd help server ... done
?postscript
species.n <- as.numeric(iris$Species)
png("test.png")
plot(iris, col = species.n)
dev.off()
null device
1
postscript("test.eps")
plot(iris, col = species.n)
dev.off()
null device
1
I now have two files in my working directory (albeit with different aspect
ratios). The test.eps file can be read by Preview although it needs to be
converted to pdf to be displayed, and then appears perfectly normal to me.
The help page for postscript() says that single plots are eps by default,
so I just named it to correspond to htat promise. If you post the console
message and describe more fully what you mean by "cannot produce a decent
.eps file", someone might be able to comment more fully.
One the other hand, efforts to insert that file into an OpenOffice.org
presentation file results in an error: "Unknown graohic format". However,
adding 2 out of 3 of the recommended arguments does result in a file that can
be inserted. I'm not sure what is wrong either with the three argument effort
(see below) or just using the "file=" argument approach.
postscript(file="test.eps",horizontal = FALSE, onefile = FALSE)
plot(iris, col = species.n)
dev.off()
null device
1
When I try with all three arguments I get an error:
postscript(file="test.eps",horizontal = FALSE, onefile = FALSE, paper =
"special")
plot(iris, col = species.n)
Error in plot.new() : figure margins too large
You did not specify the size of the 'special' paper: use width=,
height=.
If you just use file= you
1) may get a rotated plot (and will if the factory-fresh default for
horizontal= is in place).
2) get a header that does not declare this is EPS, and some including
applications will fail to include it (properly or at all).
3) get a plot with margins on the default paper size (A4 or US
letter), which is not what one wants for inclusion.
--
Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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