#### Programming

## Binary Variable

A binary variable is a categorical variable that can only take one of two values, usually represented as a Boolean — True or False — or an integer variable — 0 or 1

#### Machine Learning Algorithm Decision Trees

## Gini Impurity

A measurement used to build Decision Trees to determine how the features of a dataset should split nodes to form the tree.

#### Linear Algebra

## Eigenspace

An Eigenspace is a basic concept in linear algebra, and is commonly found in data science and in engineering and science in general.