Overview of regression algorithms in River

There is a large number of online regression models available in the River online machine learning package.

A selection of relevant ones are as follows:

• LinearRegression
• HoeffdingAdaptiveTreeRegressor
• SGTRegressor
• SRPRegressor

Regression algorithm 1 – LinearRegression

Linear regression is one of the most basic regression models. A simple linear regression is a regression model that fits a straight line through the datapoints. The following graph illustrates this:

Figure 7.3 – A linear model in a scatter plot

This orange line is a result of the following formula:

Here, y represents avg_grades and x represents nb_hrs_studies. When fitting the model, the a and b coefficients are estimates. The b coefficient in this formula is called the intercept. It indicates the value of y when x equals 0. The a coefficient represents the slope of the line. For...