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)
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')