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The following figure displays files of rJava/jri directory. (this is dependent on your Windows system) C:\Users\shlee\Documents\R\win-library\4.0. In our case, this directory is as follow. We need to know the directory where rJava package is installed. We are using Weka 3 which so far is proving to be a pretty neat (FREE) data mining tool. we need to install rJava package in R studio. To meet my goal of improving my R skills while taking this class I needed to find a way to read. arff data files from Weka into R so that I can access the data to run the assigned tasks. The first option, which is what most of my classmates are doing, is of course is to load the data into Weka and convert it to a CSV file and then load that file into R using the read.csv() command. I was curious to see if I could do it more directly.Īfter some research I found that there are several options, one of which is the RWeka library.
How to install rjava in r how to#
Solution to the problem of unable to load native Hadoop Library in MAC development Solved R Package Install error:(as ‘lib’ is unspecified)installation of package had non-zero exit status JAVAHOME is not defined correctly How to Solve ImportError: libcusolver.so.8. When I tried to install the RWeka package into RStudio (on Mac OS X) I ran into a few issues and errors mostly involving Java. Here is the solution I found after a lovely Sunday morning jumping from thread to the thread on the ever helpful Stack Overflow:ġ. Install.packages(“rJava”,type = “source”) I’m using RStudio here, but either way the command would be: Relink R with the installed Java Library on OS X.
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I was a bit worried about all those errors but then I realized I had already installed rJava before, hence the “restorng previous…” message. The “non-zero exit status” was probably a result of the previous errors, and I could not figure out what if there was another possible reason for it, so I decided to keep going.ģ. Install the RWeka package in R (or RStudio): The last step was to install the RWeka package, and then load the library.