[R-SIG-Mac] Problems with savePlot() and postscript under Snow Leopard

Hannes Nietnagel h.nietnagel at googlemail.com
Sun Feb 14 14:20:45 CET 2010 

Perfect! Thanks! That works! I tried all your suggestions and got the
same messages like you. In any case, I get png as well as eps. So I
can work with R now.

Again thank you very much for your time and advices!


Hannes



2010/2/13 David Winsemius <dwinsemius at mac.com>:
>
> 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
>
>
>
>
>
>>
>> --
>> David.
>>>
>>> Thank you!
>>>
>>> Hannes
>>>
>>>
>>>
>>>
>>> 2010/2/13 David Winsemius <dwinsemius at 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
>>>>>>
>>>>>> _______________________________________________
>>>>>> R-SIG-Mac mailing list
>>>>>> R-SIG-Mac at stat.math.ethz.ch
>>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>>>>
>>>>> David Winsemius, MD
>>>>> Heritage Laboratories
>>>>> West Hartford, CT
>>>>>
>>>>> _______________________________________________
>>>>> R-SIG-Mac mailing list
>>>>> R-SIG-Mac at stat.math.ethz.ch
>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>>>
>>>> David Winsemius, MD
>>>> Heritage Laboratories
>>>> West Hartford, CT
>>>>
>>>>
>>>
>>> _______________________________________________
>>> R-SIG-Mac mailing list
>>> R-SIG-Mac at stat.math.ethz.ch
>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>
>
>

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