similar to: Accessing R from Java [Broadcast]

Hello All, I am Fuad from Indonesia. I am doing a research using R. I need to access R from Java. Here are my computer specifications : 1. Windows XP 2. Java 1.4.0 3. R 2.2.1 4. rJava_0.4.3.zip ; I download the binary from CRAN 5. Rserve_0.4 ; I download the exe from Rosuda 6. JRI_0.3.5.tar.gz from Rosuda too I have successfully install and try a

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 all, first of all: Sorry for my bad englis, and now the Question: I have some problems with running R from Java. First i tried using rJava (JRI). But the examples didnt work properly. Now im trying to establish a connection by using Rserve and JRclient (RF503). I have the following code, which i`ve found: ------------------------------------------------------------------------ public

Hy, In my case I just invoked as root (on a linux box) the command R CMD javareconf and checked if my system and root vm did match the version of the user vm. After this the command .jinit(parameters=c("-Xmx512m","-Xmx128m")) could be executed without errors. I got this information from http://www.rosuda.org/JGR/down.shtml -- Hi, Has anybody encountered the following

Hi. I nearly have Rserve working.... I have the dialog box which says.. Rserve: Ok, read to answer queries. Having read all i can find, I followed the guidance given on http://rosuda.org/Rserve/example.shtml I tried to follow the first example but I am getting an error descirbed below. My IDE looks like this: http://www.nabble.com/file/p10705244/ide.jpg However, when I try and compile my

Hi I get this error with Rserve: eval failedeval failed, request status: R parser: syntax erroreval failed, request status: R parser: input incompleteorg.rosuda.REngine.Rserve.RserveException: eval failed at org.rosuda.REngine.Rserve.RConnection.eval(RConnection.java:233) at se.ucr.qrep.RGenerator.generateReport(RGenerator.java:45) Anyone know what it could mean? -- View this message in

The Rserve documentation at http://rosuda.org/Rserve/doc.shtml#start states that even when making multiple connections to the Rserve, Windows won't separate workspaces physically and share environments, which will obviously cause problems and should therefore not be used. Are there any alternatives for the windows platform? Ralf

Not sure if this the right place, but I can't seem to subscribe to the rJava mailing list. Sorry for the noise. I have a jar file in the CLASSPATH variable. On running .jinit and checking .jclassPath, i can see the jar file containing the class. Yet when trying to instantaite the class, i get a class not found error. Now If if, create my own vm (see below), and then run .jinit (which will

Hi all! I recently tried to install the rJava package on my notebook (Debian Etch / Kernel 2.6.15 / jdk 1.5.0-5 / R 2.2.1 / rJava ?? the repo one, have a look below). I compiled R myself with "--with-readline=no" and "--enable-R-shlib flags". Now, each time loading the library rJava I encouter the same error. I reinstalled several times (as root), always the same problem:

hi: when I run the example program on windows XP+NetBeans: Rserve_0.6-3\Rserve\src\client\javanew\Rserve\test\test.java { // test control commands (works only when enabled and in Rserve 0.6-0 and higher only) - must be the last test since it closes the connection and shuts down the server System.out.println("* Test control commands (this will fail if control commands are disabled)

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

Hi, I am facing one problem of fetching R warning messages in Java Code using Rserve. It is easier to trap R Error messages by using catching RSrvException. I came to know one way of fetching R Warning messages, i.e. using "withCallingHandlers", below is my Java Program, which uses withCallingHandlers of R : import org.rosuda.JRclient.*;

I suspect that you are looking for something like: read.csv(textConnection( "5.1,3.5,1.4,0.2,setosa 4.9,3,1.4,0.2,setosa 4.7,3.2,1.3,0.2,setosa 4.6,3.1,1.5,0.2,setosa 5,3.6,1.4,0.2,setosa" ), header = FALSE) HTH, Jan On 25-10-17 12:50, Morkus via R-devel wrote: > Hi all, > > Using RConsole, it's easy to get data from the database that you can use in an R Command. Like

Hello, I want to import R-output via Rserve to Java, especially for the function ctree from the package party. Rserve is working properly. Yet, I only get the predictions with the Java code try{ RConnection c = new RConnection(); ... c.voidEval("modell <- ctree(...)"); REXP y = c.eval("nodes(modell,1)[[1]]$prediction"); ...

Hi all, Using RConsole, it's easy to get data from the database that you can use in an R Command. Like this: (Reference case) irisQuery <- dbGetQuery(conn, "select * from iris") boxM(irisQuery [,-5], irisQuery[,5]) ---- (Actual case this posting is about) Yet, if I'm getting that same (sample IRIS) data, say, in a web service possibly POSTED from a SQL command, that same

Hello, I have some code which generates lattice objects. The function recieves serialized forms of the lattice objects which it then unserializes and then adds to an ArrayList<REXP>. REXPRaw rser = new REXPRaw( target ); //target contains the raw serialized forms of lattice objects rconn.assign("temp",rser); REXP ret =

Dear R-Help, I am trying to get JRI (the rJava interface allowing Java to connect to R) to work. I was able to run it a week ago when I was doing some testing using Java 1.5. However, I am developing a GUI application using some of the new Java 1.6 features and I just can't get JRI to work with this setup. Here is what I get: Cannot find JRI native library! Please make sure that the JRI

On 28/10/2017 7:12 AM, Morkus wrote: > Thanks Duncan. Awesome ideas! > > I think we're getting closer! > > I tried what you suggested and got a possibly better error... > . > . > . > rConnection.assign("boxMVariable", myDf); > > *String resultBV *= *"str(boxMVariable)"*; *// your suggestion.* > > *RESULTING ERROR:* > >

Does it work if you supply the closing parenthesis on the call to boxM? The parser says the input is incomplete and a missing closing parenthesis would cause that error.. // create a string command with that variable name.String boxVariable = "boxM(boxMVariable [,-5], boxMVariable[,5]"; // try to execute the command... // FAILS with org.rosuda.REngine.Rserve.RserveException: eval

Hello, I just installed rJava on [root at UG13 ~]# R --version R version 2.9.0 (2009-04-17) runing on a [root at UG13 ~]# cat /etc/redhat-release CentOS release 5.3 (Final) This is the output of [root at UG13 ~]# R CMD javareconf Java interpreter : /usr/bin/java Java version : 1.4.2_18 Java home path : /usr/java/j2sdk1.4.2_18/jre Java compiler : /usr/bin/javac Java headers gen.: