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.
--
David.
Thank you!
Hannes
2010/2/13 David Winsemius <dwinsem...@comcast.net>:
On Feb 13, 2010, at 2:53 PM, David Winsemius wrote:
On Feb 13, 2010, at 1:51 PM, Hannes Nietnagel wrote:
Dear all,
since my problem could not be solved in the general R mailing list,
I'll post the issue again in this specific mailing list.
I tried:
iris
species.n <- as.numeric(Species)
It would help if yuo access the column properly. "Species" is only
meaningful within "iris".
plot(iris, col = species.n)
savePlot(filename="IrisTestPlot", type="png")
If you want a png plot then open the png() device and close it
when you
are done:
species.n <- as.numeric(iris$Species)
png("test.png")
plot(iris, col = species.n)
dev.off()
Produces the requested plot in the working directory and Preview
opens it
without problem.
I also got a slightly different sort of success with:
plot(iris, col = species.n)
quartz.save("test2.png", type="png")
The background was completely transparent. I can see useful
application of
that feature in creating "after-the-fact" overlays of other plots.
Reviewing
the help page for ?quartz, it appears this is the expected result.
Plotting
with the png() device created a white background (as would be
expected after
reading its help page.)
--
David.
and got the error message:
Fehler in savePlot(filename = "IrisTestPlot", type = "png") :
kann nur aus 'X11(type="*cairo")' Devices kopieren
(sorry, I have a german version of R).
I tried:
postscript("IrisTestPlot.eps",
paper="special",height=6,width=6,onefile=FALSE,horizontal=FALSE)
and
postscript(file="IrisTestPlot2.pdf", onefile = FALSE, horizontal =
FALSE, paper = "special", width = 8, height = 8)
in both cases there are files produced that cannot be opened. Error
message: the bounding box is missing.
According to Michael's advice I tried:
quartz.save("IrisTestPlotquartz.png","png")
and got:
postscript
5
but no file.
as well as:
system('open IrisTestPlotquartz.png')
It states that the files does not exist.
And I tried:
plot(iris)
dev.cur()
And got the answer:
postscript
3
and again no file.
I use 64 bit R under Snow Leopard.
sessionInfo()
R version 2.10.1 (2009-12-14)
x86_64-apple-darwin9.8.0
locale:
[1] de_DE.UTF-8/de_DE.UTF-8/C/C/de_DE.UTF-8/de_DE.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods
base
loaded via a namespace (and not attached):
[1] tools_2.10.1
What could be the problem and how can I solve it?
Thank you very much in advance for your time and advices!
Hannes
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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