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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
Updated on: 14-Oct-2021
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