Displaying 20 results from an estimated 2000 matches similar to: "using R in a java application"
2006 Sep 25
2
Can't mix high level and low level plot functions.
Hey R-Comunity,
I'd like to print out an histogram of some experimental data and add a
smooth curve of a normal distribution with an ideally generated
population having the same mean and standard deviation like the
experimental data.
The experimental data is set as vector x and its name is set to
group.name. I paint the histogram as follows:
hist(data, freq=FALSE,
2006 Aug 08
1
How to convert list elements to data.frames or vectors?
Dear R mailing-list comunity!
I'm currently trying to implement an R method. I have two sets of data
that I convert into a data.frame each. These data.frames I'd like to
append to a list:
# generate a list
listTable<-list()
# add one set of data
x<-1000 ;y<-1 ;listTable[[length(listTable) + 1]] <-
data.frame(matrix(rnorm(x*y), nrow=y)); rm(x); rm(y)
# add another set of
2006 Apr 15
2
cannot load rJava in R
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:
2006 May 06
5
R and Java
Hello
I m tryng to execute the code below and I have a problem with the R-Java connection.:
import org.omegahat.R.Java.*;
public class REvalSample {
public static void main(String [] args) {
String [] rargs = {"--slave", "--vanilla"};
System.out.println("Sample program to call R engine from Java");
ROmegahatInterpreter interp = new
2005 Sep 21
1
R , Java & DCOM
Hi,
I am working on a Java project that will run primarily on Windows. As
part of the project I would like to use the R engine.
However, from what I have seen on this list & the SJava list, installing
SJava on Windows can be troublesome.
As a result I was wondering if anybody had used DCOM to access R from a
Java program on Windows (if it is all possible).
Any pointers to documents and/or
2005 Oct 05
2
R and Java
I am a grad student and am working on a project where i need to integrate
java and R. I have a front end in java and i need to call R functions and be
able to dispaly the plots and graphs produced by R on my java front end. I
came across some tools like SJava and rserve...but am not sure which best
suits my application. Your suggestion will be really helpful.
Thanks,
vasu.
[[alternative HTML
2003 Dec 10
2
How can I call R from Java or C?
Hi all,
I am new to R. I have been looking for a way to call R functions from
Java or C.
What I have found so far is: I can execute R commands in batch mode from a
file and redirect the output to another file. However, I am not sure this
is the way to do it.
About C, is it true that I can only call R from a C process,only if that C
process is invoked within R itself? So is it R->C->R ?
If
2006 Feb 22
2
How can one use R-code and R-functions within C-Code?
Dear everyone,
the following problem: Our group has written a lengthy program in c++, to which we would like to add some additional features. Because we are not sure if those features are actually useful, we would prefer to take a "quick and dirty" approach just to try them out. The additional feature is that in every iteration of the algorithm membership-probabilities should by
2004 May 26
3
SJava
Hi again!
I'm trying to download SJava from the http://www.omegahat.org/RSJava/
website.
I'm trying to get the binary.
I download the version from BDR's website.
When I unzip the file via unzip.exe, the new folder appears as SJAVA (upper
case).
>library(SJava)
Error in library(SJava) : There is no package called 'SJava'
>library(SJAVA)
Error in library(SJAVA) :
2009 Oct 28
1
how can i call R program from one java program?
Dear All
I want to call the R program from one Java program because In my project R
program parameters are set by one web page developed by java.
Is this possible to call R program from java?
many thanks in advance
--
Wesley C Mathew
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2005 Aug 29
2
FW: RServe initialization problem
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":
2004 Jun 08
3
SJAVA error
Hi
I'm trying to use SJava and I have troubles.
I try to run examples from "Calling R from Java"
but,I have an error that
"fatal error: enable to open the base package"
I heard SJAVA bug,
so,could you send me your compiled SJava package with the modified
REmbed.c because
in Windows i'm not able to recompile!!!
--example
package org.omegahat.R.Java;
public
2010 Jul 19
1
Non-blocking Eval
Hello,
I'm currently working with the C++ version of the Rserve Client as part of a student project.
Is there an implementation of a non-blocking interface to Rserve in C++? I can find one via the Java JRI but no equivalent in C++.
Thanks
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2005 Aug 29
1
RServe initialization problem
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
2012 Apr 27
1
Creating a package which contains stand-alone C code
I would like to create an R package which uses some C code, which in
turn uses MPI. At the moment I'm only interested in creating this
package for UNIX-like systems. The way I envisage this working is for
the R package to contain an R function which uses the system call to
run the C code as a separate process (passing to the C code the
location of a file of data). The C code can then do what
2006 Aug 22
3
How to interrupt running computation?
If I start a computation in R, how can I interrupt it?
I' using R 2.1.0.
Thanks for your help,
Lothar
2004 Aug 14
1
Rserve needs (but cannot find) libR.a (or maybe it's .so)
I have successfully installed Rserv (http://stats.math.uni-augsburg.de/Rserve)
on Mac OS, but I have trouble on two different linux platforms.
R CMD INSTALL Rserve_0.3-10.tar.gz
fails with this message
** libs
gcc -g -O2 -I/usr/local/include -L/usr/local/lib Rserv.c -o Rserve \
-DDAEMON -O -I/usr/local/lib/R/include -Iinclude -I. -lR -L/usr/local/lib/R/bin -ldl -lcrypt
2009 Feb 28
2
Using JRI and Java 1.6 on MAC OS X
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
2019 Jul 22
2
Fwd: Character not allowed in mailbox name
Hi Arnold,
thanks for your assistance. I solved the issue right now by changing
prefix = Shared/%%u/
to
prefix = Shared/%%n/
This omits the @mydomain.de part which holds the dot causing the
trouble. Why this became a problem due to the update I wouldn't know.
Regards
Lothar
Am 22.07.2019 um 10:49 schrieb Arnold Opio Oree:
> Hi Lothar,
>
> I haven't yet had the opportunity to
2010 Aug 20
1
Rserve (Anyone?)
REXP has an asBytes() method. Will this capture the output of an R plot
function if a proper graphics device is used? It appears R insists on
sending plot output to a file. Kind of strange since it insists on loading
all your data into memory before it can do anything.
If so then does anyone know what this would be? I prefer png or jpeg.
Example:
c is an RConnection
REXP r =