Using Java objects in R
Sometimes, we develop parts of an application in Java and need to access them from R. The rJava
package allows us to access Java objects directly from within R.
Getting ready
If you have not already downloaded the files for this chapter, do it now and ensure that these files are in your R working directory:
- Create a folder called
javasamples
and move all the files with extension.java
or.class
into this folder under your working directory. - Install
rJava
using theinstall.packages("rJava")
command. - Load the package using the
library(rJava)
command. - For
rJava
to work in your environment, the JDK version should be identical for the following, and we explain how to get them in sync for Mac OS X:- The environment JDK version: Execute ...
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