postscript() is supposed to read and write .PostScript.Options from a private environment, so one question is how .PostScript.Options got to be in the workspace: I suspect a much older version of R put it there, not least because it would seem to be using an encoding (and case) relevant to Classic MacOS.
There are a couple of 'inherits=FALSE' missing in postscript.R: one of them is stopping font initialization if .PostScript.Options exists on the search path. On Tue, 30 Oct 2007, Peter Dalgaard wrote: > John Maindonald wrote: >> I find that if start R-2.6.0 in a workspace with no .RData file, >> load one of my workspaces from R-2.5.1 or earlier into R-2.6.0, >> and then before doing anything else type postscript(file="z.ps"), >> I get:: >> >> > ls() >> character(0) >> > load(url("http://www.maths.anu.edu.au/~johnm/r/test5.RData")) >> > postscript(file="z.ps") >> Error in postscript(file = "z.ps") : Invalid font type >> In addition: Warning messages: >> 1: closing unused connection 3 >> (gzcon(http://www.maths.anu.edu.au/~johnm/r/test5.RData) >> ) >> 2: In postscript(file = "z.ps") : >> font family not found in PostScript font database >> 3: In postscript(file = "z.ps") : >> font family not found in PostScript font database >> >> Or R may be started in a workspace with such a .RData file, >> or with a .RData file from R-2.5.1 or earlier. >> >> This behavior persists even if I take such an image file, load it, >> clear the workspace, and save it. An instance of such a .RData >> file has the url: >> http://www.maths.anu.edu.au/~johnm//r/test5.RData >> >> It makes no difference whether I load the file into R-2.6.0 >> on a MacOS X or Windows system, or whether I use the current >> R-patched (2007-10-27 r43288). I do not know whether the >> source of the original .RData file matters, or how it may depend >> on what I have done in that earlier workspace. >> >> For moving my .RData files across without messing up use of >> postscript() [or pdf()], a workaround is to dump the contents of the >> earlier workspace, then start R in a working directory whose >> .RData file, if any, has the proper R-2.6.0 pedigree, and source >> the dumped file. I do not want to have to directly run the function >> that creates the database each time I start a session. >> >> Has anyone else hit this? >> > I get a slightly different scenario: > >> R > > R version 2.6.0 (2007-10-03) > .... >> load(url("http://www.maths.anu.edu.au/~johnm/r/test5.RData")) >> postscript(file="z.ps") > Error in postscript(file = "z.ps") : failed to load encoding > In addition: Warning message: > In postscript(file = "z.ps") : failed to load encoding file 'macRoman' >> ls(all=T) > [1] ".Last.projection" ".Last.value" ".PostScript.Options" > [4] ".Provided" ".Random.seed" ".Traceback" > [7] ".call" ".ess.lvsave" ".formula" > [10] ".map.range" ".rdired.objects" ".required" > [13] ".rpart.parms.2" ".rpart.parms.3" ".rpart.parms.4" > [16] ".rpart.parms.5" >> rm(.PostScript.Options) >> postscript(file="z.ps") >> > > > You might try and do likewise > > -p > > -- Brian D. Ripley, [EMAIL PROTECTED] 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 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.