What are Types and Functions in the context of Category Theory? Think of Types as Sets.

What is a category? This post explain it using Scala and Property based Tests

Standard Scala does not have a built-in feature to write to files, here is an approach to do it.

What is the Idiomatic way of iterate through multiple collections in scala?

Trying to fit a Linear Regression model in Spark I kept getting the error “`Column features must be of type org.apache.spark.ml.linalg.VectorUDT`”, I struggled looking for a solution, but finally found the key.