Python Pandas CategoricalIndex - 检查类别是否具有有序关系
要检查类别是否具有有序关系，请使用CategoricalIndex的ordered属性。
首先，导入所需的库-
import pandas as pd
使用“categories”参数设置分类的类别。使用“ordered”参数按顺序处理分类-
catIndex = pd.CategoricalIndex(["p", "q", "r", "s","p", "q", "r", "s"], ordered=True, categories=["p", "q", "r", "s"])
显示分类索引-
print("Categorical Index...\n",catIndex)获取类别-
print("\nDisplayingCategories from CategoricalIndex...\n",catIndex.categories)检查有序关系的类别-
print("\nDoes categories have ordered relationship...\n",catIndex.ordered)示例
以下是代码-
import pandas as pd
#CategoricalIndex只能采用有限且通常是固定数量的可能值
# 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"])
#显示分类索引
print("Categorical Index...\n",catIndex)
#获取类别
print("\nDisplayingCategories from CategoricalIndex...\n",catIndex.categories)
#检查有序关系的类别
print("\nDoes categories have ordered relationship...\n",catIndex.ordered)输出结果这将产生以下输出-
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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