Python Pandas - 将 CategoricalIndex 的类别设置为无序
要将CategoricalIndex的类别设置为无序，请使用as_unordered()Pandas中的方法。
首先，导入所需的库-
import pandas as pd
使用“categories”参数设置分类的类别。使用值为True的“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"])
将类别设置为无序-
print("\nCategoricalIndex unordered...\n", catIndex.as_unordered())示例
以下是代码-
import pandas as pd
# Set the categories for the categorical using the "categories" parameter
# Treat the categorical as ordered using the "ordered" parameter with value True
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("CategoricalIndex...\n",catIndex)
#获取类别
print("\nDisplaying Categories from CategoricalIndex...\n",catIndex.categories)
#将类别设置为无序
print("\nCategoricalIndex unordered...\n", catIndex.as_unordered())输出结果这将产生以下输出-
CategoricalIndex... CategoricalIndex(['p', 'q', 'r', 's', 'p', 'q', 'r', 's'], categories=['p', 'q', 'r', 's'], ordered=True, dtype='category') Displaying Categories from CategoricalIndex... Index(['p', 'q', 'r', 's'], dtype='object') CategoricalIndex unordered... CategoricalIndex(['p', 'q', 'r', 's', 'p', 'q', 'r', 's'], categories=['p', 'q', 'r', 's'], ordered=False, dtype='category')