clj-jri
A simple wrapper library for JRI, Java/R interface, mostly to draw charts on R.
Usage (Mac: libjri.jnilib, Ubuntu or Linux: libjri.so)
- install jri
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
R CMD javareconf JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64install.packages("rJava")- check libs path
➜ clj-jri git:(master) ✗ ls /usr/local/lib/R/3.4/site-library/rJava/jri/JRI.jar
/usr/local/lib/R/3.4/site-library/rJava/jri/JRI.jar
➜ clj-jri git:(master) ✗ ls /usr/local/lib/R/3.4/site-library/rJava/jri/JRIEngine.jar
/usr/local/lib/R/3.4/site-library/rJava/jri/JRIEngine.jar
➜ clj-jri git:(master) ✗ ls /usr/local/lib/R/3.4/site-library/rJava/jri/REngine.jar
/usr/local/lib/R/3.4/site-library/rJava/jri/REngine.jar
➜ clj-jri git:(master) ✗ ls /usr/local/lib/R/3.4/site-library/rJava/jri/libjri.jnilib
/usr/local/lib/R/3.4/site-library/rJava/jri/libjri.jnilib
➜ clj-jri git:(master)- ENV setup
export R_HOME=/usr/local/Cellar/r/3.4.0_1/R.framework/Resources- project.clj : jvm-opts & resource-paths
:dependencies [ ...
[clj-jri "0.1.1-SNAPSHOT"]
]
:jvm-opts [ ...
~(str "-Djava.library.path=/usr/local/lib/R/3.4/site-library/rJava/jri/:" (System/getProperty "java.library.path"))]
:resource-paths [...
"/usr/local/lib/R/3.4/site-library/rJava/jri/JRI.jar"
"/usr/local/lib/R/3.4/site-library/rJava/jri/JRIEngine.jar"
"/usr/local/lib/R/3.4/site-library/rJava/jri/REngine.jar"
"/usr/local/lib/R/3.4/site-library/rJava/jri/libjri.jnilib"]
- lein
lein clean
lein repl- require
[clj-jri.R :as R]
Preparation
You may need to install R library "JGR/rJava" (http://rforge.net/JGR/) on R by "install.packages('rJava')" and have to set the following environment variables.
:resource-paths ["lib/JRI.jar"
"lib/JRIEngine.jar"
"lib/REngine.jar"
"lib/libjri.jnilib"]
:jvm-opts [~(str "-Djava.library.path=/usr/local/lib/R/3.4/site-library/rJava/jri/:" (System/getProperty "java.library.path"))]
- Usage:
clj-jri.core=> (ns test (:require [clj-jri.R :as R]))
WARNING: eval already refers to: #'clojure.core/eval in namespace: clj-jri.R, being replaced by: #'clj-jri.R/eval
nil
test=> (R/eval "rnorm(5)")
[-0.8927281724537759 -0.31414492274597694 0.16723344714036312 -0.7862470681485274 0.26787108270930693]
test=>You also need to place REngine.jar, JRI.jar and libjri.so from the original project site onto LD_LIBRARY_PATH.
Examples and notes
See clj-jri.sample for the example codes and notes on the usage.
TODOs
Additional features may be supported in the future, when necessary.
References
For detail, refer to https://github.com/s-u/rJava and to http://www.rosuda.org/r/nightly/javadoc/org/rosuda/JRI/Rengine.html
License
Copyright © 2014 Takahiro SAWADA
Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.
