What tool should I learn? This is one of the most common questions that aspiring data scientists will ask, and one which doesn't seem to have easy answers. A Google search for "Data Science Tools" returns sites talking about R, Python, SQL, Clojure, Julia, Apache Spark, and more. It's a dizzying array of answers, and to make it worse, there is little advice about which to use. I'm here to correct that.
