Weka is a data-mining tool that can help you build out decision trees using Java.

I will write many more entries in the weeks to come but here's a quick tutorial on how to install it using homebrew.

Step 1

Install Homebrew package manager for OS X.

Step 2

The next step is to install Homebrew Cask Extension.

brew install cask

Step 3

Install Weka

brew cask install weka

Step 4

Double check your work.

brew cask doctor