Python Pandas CategoricalIndex - 获取该分类的类别
为了得到这个分类的类别，使用类别的财产CategoricalIndex的大熊猫。首先，导入所需的库-
import pandas as pd
CategoricalIndex只能采用有限的，通常是固定数量的可能值（类别。使用“categories”参数设置分类的类别。使用“ordered”参数将分类视为有序-
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("\nDisplaying Categories from CategoricalIndex...\n",catIndex.categories)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("\nDisplaying Categories from CategoricalIndex...\n",catIndex.categories)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')