Ordinal Categorical Encoding or Label Encoding

Ordinal data is a categorical, statistical data type where the variables have natural, ordered categories and the distances between the categories is not known.

For example:

• Student's grade in an exam (A, B, C or Fail).
• Educational level, with the categories: Elementary school, High school, College graduate, PhD ranked from 1 to 4.
• When the categorical variables are ordinal, the most straightforward best approach is to replace the labels by some ordinal number based on the ranks.

Let us do a practical !

import pandas as pd

import datetime