RCaller is a LGPL'ed library for calling R from Java. It is easy to use, practical and handy tool. It is in-efficient by means of CPU time, memory efficiency and some other issues.
Questions tagged [rcaller]
52 questions
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R language Strange behavior
I'm using some R code in order to use the model BG-NBD implementation
I'm using Java and I call R by using RCaller.
I must admit that i'm really really new to R so maybe I'm doing something wrong.
I use the code on this URL:…
Angelo Immediata
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0
votes
2 answers
Can't get RCaller to work, get error on line caller.runAndReturnResult
I am trying to use Rcaller with simple example code as follows
public class rcaller {
public static void main(String[] args) {
RCaller caller = RCaller.create();
RCode code = RCode.create();
double[] arr = new…
d20gdx
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0 answers
Calling Java method from JSP not wotking
I am trying to call a java method('method1') that runs some r code(using RCaller) when a specific button is clicked on a JSP page('button1'), but when i click on the button it doesn't do anything and I am getting no errors in the output. I'm trying…
Flex89
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0
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2 answers
Getting started with RCaller 3.1
I try to start with RCaller, but I fail at the very beginning.
When I try to run any example, the line
RCaller caller = RCaller.create();
gives the following Exception:
Exception in thread "main" java.lang.ExceptionInInitializerError
at…
Tom Grille
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votes
1 answer
How to display dataframe in window using Rcaller
I am trying to display dataframe in a file using Rcaller library in java. But it seems does not work.
The following code is what I'm trying to do:
RCaller caller = new RCaller();
RCode code = new RCode();
code.addRCode("a=table(data$rate,…
Manel Chaabene
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0
votes
1 answer
java.lang.NoClassDefFoundError: rcaller/RCaller in java-ee
I am trying to integrate regression R code into my j2ee project using R caller.
My datasource is from mysql database. So I used RMYSQL as package.
My code work fine under java project but when I moved it into backing bean class it throws an…
Manel Chaabene
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0
votes
1 answer
Load data using RCaller
I want to load data which is embedded in an R package. I use GWmodel package and want to load LondonHP data. But when i try to load the data using RCaller in Java, the xml return is :
This is my code to load the…
0
votes
1 answer
RCaller: prevent automatic error printing
I'm using RCaller to execute some analysis on a data frame within my Java application. More specifically, I want to run Coarsened Exact Matching using the CEM library of R.
As far as CEM is concerned, it returns some data about the mathching, if any…
Roberto
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0 answers
RCaller not available in Maven version of R3.2.2 and below
I am using RCaller to execute my R commands within java
Caller caller = new RCaller();
RCode code = new RCode();
caller.setRscriptExecutable("C:\\Program Files\\R\\R-3.2.2\\bin\\Rscript");
caller.cleanRCode(); …
Devz
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votes
0 answers
Rcaller file returning as empty
I am relative new to R and am attempting to call R from my Java code. I was using rJava but faced errors and so switched to rCaller. However, while executing a sample test code the output is coming as empty file. Can anyone shed some light on this?…
Ayon
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0
votes
1 answer
p-value calculation using Java
I want to make a Java program to calculate the P-value of my data that I want to upload, but getting too much trouble to do so. The data is been read by the Java program, but next step is to solve data for getting p-value.
The input file is:
The…
Aju.k
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0
votes
1 answer
rCaller generates an empty Image and empty plot
I'm trying an example in eclipse running on windows 8, JRE 7, RCaller 2.4 and R-3.0.2. I also ried R-3.1.1.
But when the plot is generated it appears empty, and it shows no exceptions or errors.
When I looked up the generated plot it has a size of 0…
slowessam
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0
votes
3 answers
rcaller IOException at runAndReturnResult
I am trying to connect R from java using RCaller and here is my code
RCaller caller = new RCaller();
RCode code = new RCode();
caller.cleanRCode();
caller.setRscriptExecutable("C:/Program Files/R/R-3.0.2/bin/Rscript.exe");
code.addRCode…
Magic
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votes
2 answers
How To Use Rcaller with Java Servlet and read CSV file
I'm using R programing to analysis FFT . now I want to make Java web application/ java servlet and calling R to use Rcaller/Rcode for it . I have some reference about Calling Rcode in java application.…
user3564101
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0
votes
2 answers
Rcaller simple code - Error loading Runiversal
I have the follow Java code that uses Rcaller.
RCaller caller = new RCaller();
RCode code = new…
CodeGuy
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