John, thanks for your advice! Unfortunately I get an R error (in the Rterm): Fehler in eval.with.vis(expr, envir, enclos) : konnte Funktion "postscript" nicht finden (= couldn't find function "postscript") Here's the script I'm running from gretl, following your suggestions: library(graphics); postscript("myRfile.ps") plot(gretldata[,"realgdp"],gretldata[,"realcons"]); dev.off() Any ideas? thanks, sven John C Frain schrieb:

Sorry I added the postscript and dev.off commands in the interactive R session generated by GRETL. I have the same problem when I try to run the script from R. Like Allin I can not see what is wrong. It is almost right. If I start R and generate an interactive session as follows R version 2.7.1 (2008-06-23) Copyright (C) 2008 The R Foundation for Statistical Computing ISBN 3-900051-07-0 R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. Natural language support but running in an English locale R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. [1] "C:/Documents and Settings/John C Frain/Application Data/gretl" null device 1 ########################### End Session ############################################## everything works properly. If 1. I start Tinn-R and load the file Rsrc into the editor. (Tinn-R is configured to start without starting R. If I load an R-script into Tinn-R and start R the directory holding the script becomes the working directory. It is not necessary to load the Sciviews package or to make any Tinn-R specific additions to the Rprofile file if one wishes to work in this way if one wishes to work in this way) 2 Start R from within Tinn-R 3 Run the Rsrc script line by line or as a block everything also runs properly. If anything is wrong it must be very small. (famous last words) Best Regards John 2008/8/4 Sven Schreiber <svetosch(a)gmx.net&gt;: > John, > thanks for your advice! Unfortunately I get an R error (in the Rterm): >> sink("C:/Dokumente und Einstellungen/svenne/Anwendungsdaten/gretl/R.out") > Fehler in eval.with.vis(expr, envir, enclos) : > konnte Funktion "postscript" nicht finden > (= couldn't find function "postscript") > Here's the script I'm running from gretl, following your suggestions: > library(graphics); > Any ideas? > thanks, > sven > John C Frain schrieb: >>> Load the sample data set green5_1.gdt into gretl. >>> Do a crossplot of say realgdp and realcons in Gretl >>> The following script run from GRETL will produce the corresponding >> default graph in R >>> library(graphics); >>>> If you put a command >>> postscript(file="myfile.ps") >>> before the plot command it will write a postscript version to of the >> the specified file in the R working directory. You should put a >>>>> command after the plot command. There are many ways to beautify the >> file. You might want to consult Murrell (2006), "R Graphics", Chapman >> & Hall or any of the many books on R for more details. >>> I would use R for Graphics when i am working in R. I think that the >> front end on gnuplot in Gretl is superb and would use it unless I am >> already in R. (I also think that R graphics are very good and more >> flexible but they can often they require a bit more work. I have >> tried to use gnuplot directly and would definitely prefer R. Perhaps >> this is because I am not as familiar with gnuplot. >>> Best regards >>> John >>>>> 2008/8/2 Sven Schreiber <svetosch(a)gmx.net&gt;: >>>>> Hello everybody, >>>>> I'm wondering whether it could make sense to produce graphs with R, given >>> the brand new gretl functionality to embed R commands. I would like to >>> compare the output quality of the standard gretl approach (using gnuplot) >>> with what embedded R would provide. >>>>> However, I have no experience with R, so I need help: does anybody have a >>> minimal script example (say, simple scatter plot of two variables) that >>> could be run in gretl and produce the graph, ideally saveable in pdf? >>>>> thanks, >>> sven >>> _______________________________________________ >>> Gretl-users mailing list >>> Gretl-users(a)lists.wfu.edu >>> http://lists.wfu.edu/mailman/listinfo/gretl-users >>>>>> _______________________________________________ > Gretl-users mailing list > Gretl-users(a)lists.wfu.edu > http://lists.wfu.edu/mailman/listinfo/gretl-users -- John C Frain Trinity College Dublin Dublin 2 Ireland www.tcd.ie/Economics/staff/frainj/home.html mailto:frainj@tcd.ie mailto:frainj@gmail.com

On Mon, 4 Aug 2008, Allin Cottrell wrote (in response to John Frain) Just tried that: moved "library(graphics)" into the init file written by gretl, so that the library should be pre-loaded by the time Rsrc, which calls the postscript() function, is read. It didn't help, the message is still: Error in eval.with.vis(expr, envir, enclos) : could not find function "postscript" Allin

Now it works great, thanks Allin! I completely agree with John that the gretl frontend to gnuplot was... ahem, *is* very nice. But many times when I tried to get a non-standard graph by editing the gnuplot commands I failed, and looking at the gnuplot documentation didn't help much. Also it seems to me that R's demo graphics tend to look more polished or "modern" than the gnuplot outputs. So I'm willing to give R a shot, maybe it's easier to learn and/or better documented. And since there seems to be a general trend towards R, the payoff may be double: getting the graphics and at the same time slowly learning how to use it for the part of econometrics which isn't yet implemented in gretl. Anyway, I'm sure gnuplot and R will coexist for a long time, but I think that gretl also has great potential as a data manager and GUI frontend to R. Thanks for that feature and for your help, Sven -------- Original-Nachricht --------

Just to add that pdf("myfile.pdf") instead of the postscript command will save in pdf format John 2008/8/2 Sven Schreiber <svetosch(a)gmx.net&gt;: -- John C Frain Trinity College Dublin Dublin 2 Ireland www.tcd.ie/Economics/staff/frainj/home.html mailto:frainj@tcd.ie mailto:frainj@gmail.com