Weka is a very comprehensive machine learning tool. It is an excellent way to get introduced into the world of machine learning and data mining. It contains many popular algorithms and a very easy-to-use graphical interface for data analysis. In this course, you will use Weka to run analyses on real datasets and get some practice on some of the fundamental concepts of data science.
Lesson 1: Introduction to Weka
Lesson 2: Weka Labs