One-Hot Encoding

Key word: Encoding

• Label Encoding

| Food Name | Categorical | Calories | | — | — | — | | Apple | 1 | 95 | | Chicken | 2 | 231 | | Broccoli | 3 | 50 |

• One-hot encoding

Apple	Chicken	Broccoli	Calories
1	0	0	95
0	1	0	231
0	0	1	50

For each unique value in the original categorial column, a new column is created in this method.