Frustration using rJava to call a third party Java jar

Question

I\'m trying to use R to hook the Java code from the GSRad project. The GSRad Java code is available online and comes as a One-Jar project jar (I was not familiar with One-Ja

Answer 1

Let me preface my answer by saying that I'm no expert in Java / rJava, so apologies if this isn't 100% correct. I hope it's a step in the right direction though.

Start by unzipping gsrad_sample.jar to C:/gsrad (or adjust your paths based on where you unzip it). Then add all the contents of C:/gsrad/lib to your class path:

library(rJava)
.jinit()
.jaddClassPath(dir( "C:/gsrad/lib", full.names=TRUE ))
.jclassPath()
.jnew( "cra/clima/gsrad/GSRBristowCampbellStrategy" )