On Fri, 30 Apr 1999, Geldenhuys, Willie wrote:
I am trying to use the Windows version of R to do the following: - Have a Delphi front-end which gets the user input - Delphi will produce a R script, do a system call to R to calculate the statistics. Is there a better way? Maybe a library one can use in Delphi or Visual C?
Not yet! If you look back in the recent R-help archives you will see a report on future plans for R for Windows.
- How do one see a graph? A graph is plotted in a window which IMMEDIATELY closes afterwords so that one can't see anything. How can one get the graph to show until user presses a key.
You did something to make the window close, for example had EOF in the script. If my guess is right, don't do that. Two ideas: (1) call locator(1) at the point you want a wait. Then the user has to click on the graph to continue. (2) run R at the end of a pipe. Then you can send EOF when you are done with R, or dev.off() when you are done with the graphics window. I have no idea if Delphi supports pipes correctly. The --ess flag in R is designed to simplify its use at the end of a pipe from NTemacs.
Brian D. Ripley, ripley at 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 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._