Category Archives: Tutorials

Tutorials and guides of how some statistical techniques work and how to apply them.

Multiple Linear Regression

Multiple Linear Regression (MLR) allows us to find a linear relationship between multiple input variables and a single dependent output variable. This tutorial is going to be given in matrix notation. For more on matrix notation, including the rules of matrix multiplication, I suggest visiting the wikipedia page on the subject here. We are again […]

Simple Linear Regression

Simple linear regression seeks to find a linear relationship between two variables; the independent ‘predictor’ variable, and the dependent ‘outcome’ variable. We represent this linear relationship with a line, the slope of which allows us to make inferences as to the nature of the relationship. I.e., for every unit change in the predictor variable, the […]