Basics of Machine Learning - Regression

Introduction: Mixing Colours

Interpolation:

• between TWO colours, both colours inclusive using a straight line between them
  
• between several different colours?
  • by mixing “equal proportions” of each
    
  • Proportions based on “distance” from each colour
    
  • On a “plane” with these points

Some Examples from Drama

1. Legally Blonde:

Legally Blonde

2. Greek Chorus Explained:

The Greek Chorus Concept

3. Sutradhar in Indian Drama

View webpage in full screen

https://www.britannica.com/art/theater-building/Developments-in-Asia#ref463835

Discussion

• Interpolation
• Extrapolation
• Calculating the optimum values for m and c, given x and y**, for \(y = mx + c\)

Playing with Orange: Paint My Data

Figure 1: Painting Data for Regression

Let us “draw inspiration” from the picture above, and see if we can replicate it. We will fire up Orange, paint some data and see if we can fit a linear regression ML model to it.

Here is the Orange file for you to download. Open this file in Orange.

Regression Plane

(a) Cars and Mileage vs Weight + CC

(b) Penguin Weight vs Flipper + Bill

Figure 2: Interactive Regression Planes