On May 2, 2005, at 2:55 AM, D0c wrote:
Hey guys thanks for the help. I found Rserve to be a solution i can work with. i'll just use the JRClient to connect to Rserve. However i have another problem. How can i get a nice graph from Rserve using JRCLient using the plot() function?
There are several ways - you can use one of the R devices (e.g. jpeg/ png, pdf or GDD) to create a file and then transport it to the client using Rconnection.openFile (or use it locally depending on your setup) or you can use one of the special devices to plot directly - xGD or JavaGD.
Or for that matter a simple summary() of a dataset to be printed on screen (eg JOptionPane)?
Something like
String s = c.eval("paste(capture.output(summary (data)),collapse='\n')").asString();
then add the string to whatever widget you want ... Maybe a better place for discussing Rserve is http://www.rosuda.org/lists.shtml
If you don't need the client/server separation you may consider JRI (as used by JGR) or SJava (from Omegahat) instead - both embed R into Java directly i.e. you have only one process running. JRI works nicely with rJava and JavaGD so you have a native Java graphics device that you can embed in your AWT/Swing windows. Rserve is better for applications with several clients such as web servers. SJava is more general, but is not easy to setup on non-unix platforms (your mileage may vary).
Cheers, Simon
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