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Python Pandas CategoricalIndex - Check whether the categories have an ordered relationship
To check whether the categories have an ordered relationship, use the ordered property of the CategoricalIndex.
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 categories −
print("\nDisplayingCategories from CategoricalIndex...\n",catIndex.categories)
Check categories for ordered relationship −
print("\nDoes categories have ordered relationship...\n",catIndex.ordered)
Example
Following is the code −
import pandas as pd # CategoricalIndex can only take on a limited, and usually fixed, number of possible values # 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) # Check categories for ordered relationship print("\nDoes categories have ordered relationship...\n",catIndex.ordered)
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') Does categories have ordered relationship... True
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