similar to: help on Rserve

Dear All, I need to call R functions from Java, I've read on the internet about JRI but there are no exemples, neither tutorials. I'm beginner in Java and in R, Could you please help me?? Thank you in advance, Xena --------------------------------- [[alternative HTML version deleted]]

Madam, I've read your answer : /////////////////////////////////////// Here are other alternatives that are easy to implement and that you should consider depending on what you want to do: 1- one is to use R in batch mode ie you create a file in your java code with all the R commands and send it to R (via Process pc=Runtime.getRuntime().exec(Rcall); )and then R creates an

I realize the communication between R and Java with Rserve in my dissertation, but i can not run the Rserve by double click of Rserve.exe, and also i can't realize backstage running of Rserve by technique of Multi-thread in Java. Can anyone tell me why? So, before i run the Java, i must run the R manually, then input "Rserve()" or "system("Rserve")". This

Hello, I am using Rserve to create a dedicated computational back-engine. I generate and pass an array of data to a java application on a separate server. I was wondering if the same is possible for an image. I believe that Rserve supports passing certain R objects and JRclient can cast these objects into their Java counterparts. If I generate a barplot in R (remotely), can I pass the graph

I am trying to build R on a Centos server without admin privileges (or support), so I can call R functions from NetLogo models (via the NetLogo R extension or possibly Rserve), but I'm getting stuck near the end of make. Any suggestions? Here's the setup... $ R_SHELL=/bin/sh $ R_HOME=~/R-devel $ cd $R_HOME; ./configure; make returns ... begin installing recommended package MASS

?maintainer ## i.e. maintainer("rserve") Also, please search. A web search on simply "rserve" brought up what appeared to be many relevant hits. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Mon, Nov

We had something similar, and as far as I recall the problem turned out to be that we had not set the config file to allow remote connections. This would probably be better put on the Rosuda mailing list: http://mailman.rz.uni-augsburg.de/mailman/listinfo/stats-rosuda-devel Hope this helps, Matt Wiener -----Original Message----- From: r-help-bounces at stat.math.ethz.ch [mailto:r-help-bounces

Hi, I want to run the R-function ctree (package party) from Java over Rserve with the following Java-Code: try{ RConnection v = new RConnection(); v.voidEval("library(party)"); v.voidEval("try(load(\"C:\\Documents and Settings\\daten2.rda\"))"); v.voidEval("try(pdf(\"C:\\Documents and Settings\\test4.pdf\"))"); v.voidEval("plot

Hello, We are facing some problem while calling a Rserve API from our Java client. The details are as below: 1) We have installed Rserve on linux machine "Nagarajan"(Port: 6311) and related modules. 2) We have started the Rserve in daemon mode perfectly by executing the comman " R CMD Rserve" on the linux machine. But when the Java client executes the statement:

Hi there. I am able to create a multidimensional scaling algorithm in R using the following code: places<-read.table("C:\\Project\\R\\places.txt") places.location <- cmdscale(places, k=2) round(places.location,0) plot(places.location,type="n", xlab="", ylab="",main ="cmdscale(places)") What I would like to know is how I can do this by

Dear all, I'm trying to use R-functions from Java. I want to use the Package Rserve. Everthing is installed and I can run my Java-testprogramm. ... Rconnection r = new Rconnection(); double[] d = r.eval("rnorm(10)").asDoubleArray(); ... But now I get always arrays with ten "0.0", which is not correct I suppose, that is is a problem from R, because at the fist time (last

I want to use the R functionalities in my Java program. I found the Rserve that appear to suite my requirements but I'm facing some configuration problems. I' following the web page tutorial (http://stats.math.uni-augsburg.de/Rserve/doc.shtml) but I face the above problem: C:\Program Files\R\rw2010\bin>R CMD RSERVE Can't open perl script "C:\PROGRA~1\R\rw2010/bin/RSERVE":

Hi all, We're using Rserve and RandomForest to do classification from within a Java program. The total is about 4 lines of R code: library('randomForest') x y future fit<-randomForest(x,y,no.action=na.roughfix,importance=T,proximity=T) p<-predict(fit, future) What is very frustrating is that we have tried this two different ways (both work in R): 1. Load x, y, and future

I want to use the R functionalities in my Java program. I found the Rserve that appear to suite my requirements but I'm facing some configuration problems. I' following the web page tutorial (http://stats.math.uni-augsburg.de/Rserve/doc.shtml) but I face the above problem: C:\Program Files\R\rw2010\bin>R CMD RSERVE Can't open perl script

Hi all, is there a way to properly terminate Rserve instead of killing the process? I run Rserve in a linux box that serves my Java client.. I have a cronjob that runs Rserve every morning. However, I'm killing it at night manually for the moment. Is there a way, given host/port, I can run an R command to properly terminate it?? Thanks a lot in advance!! - yoooooooo -- View this message in

Hello, I'm using Rserve with Java and although it works OK for 50 or 60 requests, eventually Rserve simply stops responding and I have to force-quit and restart Rserve. During this time the JVM is fine and Tomcat (app server) is fine, too. The basic Java code does this: -------------------------------------------- 1. Create an R Connection 2. Execute an R Script via Rserve "eval"

I have tried using the following piece of Java code to start Rserve on my Linux PC without success. try { String command = "R CMD Rserve "; Process p = Runtime.getRuntime().exec(command); returnCode = p.waitFor(); if (returnCode != 0) { errorMessage = "Unexpected return code = " + returnCode; } } catch (Exception e) { errorMessage = "Exception in running :" +

Does anyone know where I can obtain DemoPlot.java from. I want to use it to find out how implement something in Java in conjunction with Rserve. Cheers -- View this message in context: http://www.nabble.com/PlotDemo.java-for-Rserve--tf3812255.html#a10790967 Sent from the R help mailing list archive at Nabble.com.

Hey is there a more consistent way of connecting to Rserve. I have code that opens a connection to Rserve by executing explicitly using Java runtime ( "C:\Program Files\R\r20XXX\Rserve.exe" ). However when i run the app and attempt to connect, it does not connect imediately.I have to close the app and open it again for a few times before i get a connection. Am i doing something wrong?

I need to input a txt, or xls, file from a client to R, using RServe. >From what I've been reading, the best way to do this, is using the 'createReference' method, from REngine package. But I couldn't find any documents exemplifying it's use. I got to upload a file from java? And then? How do i refeer the file to this method? Best Regards, J. Daniel -- View this message