Python Pandas - Get the minimum value from Ordered CategoricalIndex

To get the minimum value from Ordered CategoricalIndex, use the catIndex.min() method in Pandas. At first, import the required libraries −

import pandas as pd

Set the categories for the categorical using the "categories" parameter. Treat the categorical as ordered using the "ordered" parameter −

catIndex = pd.CategoricalIndex(    ["p", "q", "r", "s","p", "q", "r", "s"], ordered=True, categories=["p", "q", "r", "s"] )

Display the Categorical Index −

print("Categorical Index...\n",catIndex)

Get the min value −

print("\nMinimum value from CategoricalIndex...\n",catIndex.min())

Example

Following is the code −

import pandas as pd # CategoricalIndex is the Index based on an underlying Categorical # Set the categories for the categorical using the "categories" parameter # Treat the categorical as ordered using the "ordered" parameter catIndex = pd.CategoricalIndex(    ["p", "q", "r", "s","p", "q", "r", "s"], ordered=True, categories=["p", "q", "r", "s"] ) # Display the Categorical Index print("Categorical Index...\n",catIndex) # Get the categories print("\nDisplayingCategories from CategoricalIndex...\n",catIndex.categories) # Get the min value print("\nMinimum value from CategoricalIndex...\n",catIndex.min())

Output

This will produce the following output −

Categorical Index... CategoricalIndex(['p', 'q', 'r', 's', 'p', 'q', 'r', 's'], categories=['p', 'q', 'r', 's'], ordered=True, dtype='category') DisplayingCategories from CategoricalIndex... Index(['p', 'q', 'r', 's'], dtype='object') Minimum value from CategoricalIndex... P