similar to: how to use Rengine instance to parse R script String

Hi all, I am using R and JRI under Windows XP Pro. I am posting this question here since the reason might be R related (since I am running an R script) but there is also a very good chance that it is JRI only (since I am using the JRI interface to activate the script) -- in which case I want to apologize for misplacing this message. I have a method that instantiates an REngine object every time

Hello once again, After locating the standalone REngine object set, I am having difficulty integrating them into the XCode project I intend to use them in. Suppose one started with the REngine standalone source and a blank XCode file, what special modifications need to be made to allow the source files to see inside R.framework? Importing the framework into the project, setting the

Hi everyone, I try to run my R script in Java, thus I installed JRI. and run the example, I am using Eclipse on 64 bits windows 7. part of the example code is as follows: public static void main(String[] args) { System.out.println("Creating Rengine (with arguments)"); Rengine re=new Rengine(args, false, null); System.out.println("Rengine

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 =

Hi, I want to call R from within Java, using jri as per http://www.rosuda.org/software/jri/ So I am following the instructions in the README file for JRI 0.2-4. I have run 'sh configure.win' and 'make' and they seemed to be successful. (See below for the output from make, for example.) But when I try 'run.bat rtest' (with and without R command line arguments) the output

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: Error in format.default(nam.ob, width = max(ncn), justify = "left") : invalid 'width' argument (No idea

Hi, Forum newb here, looking for some help. Have been trying to install an R-Java interface to make R calls from Java. JRI's configure script runs fine, but when it comes to make, I get the "error: too few arguments to function 'R_ParseVector'" Java runs fine. R runs fine. But I can't get this .jar file created. <grumble> Any help would be appreciated immensely,

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

Hey Duncan, Hard to debug? That's an understatement. Eyes bleeding.... In any case, I tried all your suggestions. To get "integer" for the final column, I had to change the code to get integers instead of strings. double[] d1 = ((REXPVector) ((RList) tableRead).get(0)).asDoubles(); double[] d2 = ((REXPVector) ((RList) tableRead).get(1)).asDoubles(); double[] d3 = ((REXPVector)

Hi all, How to store recursive resutls from a function for each step without using global operators <<-? Thanks ahead. Xiaohui Chen Dept. of Statistics UBC, Canada _________________________________________________________________ Don?t waste time standing in line?try shopping online. Visit Sympatico / MSN

That's amazing! Thank you!!! One follow up question, if that's OK? If, instead of using hard-coded CSV, I read the CSV into a variable first, then it fails again with a parse error. Code below. So, if I read the CSV into a variable, do I need an additional wrapper method? Seems like it should still work. Thanks in advance for your reply. -M String inputIris =

Thanks Duncan. I can't tell you how helpful all your terrific replies have been. I think the biggest surprise is that nobody appears to be using Java and R together like I"m trying to do. I suppose it should be a surprise since there are no books on the subject and almost no technical documentation other than a few sites here and there. ----- I originally had the "int" as the

I'd like someone familiar with the R options initialization to comment on a difference of behavior within/without mpiexec I have a (.NET) application with embedded R that is proven to run in a single process: ./Sample1.exe on a Debian Linux with R 3.0.2 Running the same code with mpiexec, it fails at the R engine initialization: mpiexec -n 1 ./Sample1.exe Fatal error: you must

Hi, R_tryEval, exported in Rinternals.h but not part of the API, is currently defined as: R_tryEval(SEXP e, SEXP env, int *ErrorOccurred); I'm trying to embed R in an application (basically yet another GUI), and this has been very helpful to catch errors. It would be even more helpful if it also gave access to the visibility flag. I can wrap this in a call to withVisible, and that works

Dear Helpers: I'm trying to use packages "maps" and "mapdata" (see blow) to display the research resutls on map (Mid-Atlantic region). In particular, I need to mark a number of points in the map by giving their latitude and longitude information. For instance, I would like to mark a point on (long, lat) =(75.56027, 39.09271). Also, I need to mark several cities that I

Hola, es la primera vez que mando un correo a cualquiera de las listas de correo de R y no se si esta consulta se ajusta al próposito de la r-help list o debería haberlo mandado a otra de las listas que hay. Mi problema es el siguiente: Estoy desarrollando un programa en java con llamadas a R y no puedo usar jri 0.4-1 con la version 2.7 o 2.6 de R. Curiosamente si me funciona si uso jri 0.4 o la

Dear R users, I have a small project written in Java and need some statical tools. Therefore, I used JRI (in rJava package) as an interface between R and Java to write some wrappers for my work. However, I received error message from R while I have more than one java method which wraps R: Error in .Call("R_isMethodsDispatchOn", onOff, PACKAGE = "base") : Incorrect

Hello all, I`m a computer science student from Frankfurt/main (germany). Our student team (10 students) are working on a R/Interface project (Java and R) and we have a problem with R and JRI. We are working on 10 computers with Windows XP SP2, R 2.8.0, jdk1.6.0_11 and the same classpath setttings but our application works only on two computers. We can't explain us this.

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

I am trying to run rTest example (XP, Eclipse, ) available with code. JRI etc are used from the rJava package (i.e. Haven't built myself) The code dosent runs properly - it shows ( i tried passing argument as --save). what else is possible. 'Creating Rengine (with arguments)' and then gets terminated. When I am trying to use run.bat >run.bat examples\rtest.java it says >