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())
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')