week1 dir contains linear regression demo for the first week.

Just run it, click to create additional points and see how it converges.

week2 dir contains linear regression with multiple features demo for the second week. The implementation works with any number of features, but we use 2 because human beings have troubles perceiving more than 3 dimensions.

You can left click the image and rotate it with the mouse and add points by the inputs on the bottom.

There 2 algorithms: linear regression and normal equation and you can switch between them by changing USE_NORMAL_EQUATION in src/constants.rs file

week3 dir contains a demo for logistic regression with 1 and 2 features. For 2 features there's a 2d visualization where x, y and size of the dot are original data. For 3 features we visualize points in 3d space and prediction function as a sigmoid surface. You can add new points and see how the surface will get adjusted.

There's no demo for week 4 since week 5's demo includes the material from week 4.