Python Pandas - 在 MultiIndex 中获取标签或标签元组的位置
要获取MultiIndex中标签或标签元组的位置，请使用Pandas中的方法。MultiIndex.get_loc()
首先，导入所需的库-
import pandas as pd
MultiIndex是Pandas对象的多级或分层索引对象-
multiIndex = pd.MultiIndex.from_arrays([list('pqrrss'), list('stuvwx')])显示多索引-
print("The MultiIndex...\n",multiIndex)获取位置-
print("\nGet the locations in MultiIndex...\n",multiIndex.get_loc('s'))示例
以下是代码-
import pandas as pd
#MultiIndex是Pandas对象的多级或分层索引对象
multiIndex = pd.MultiIndex.from_arrays([list('pqrrss'), list('stuvwx')])
#显示多索引
print("The MultiIndex...\n",multiIndex)
#获取MultiIndex中的级别
print("\nThe levels in MultiIndex...\n",multiIndex.levels)
#获取位置
print("\nGet the locations in MultiIndex...\n",multiIndex.get_loc('s'))输出结果这将产生以下输出-
The MultiIndex...
MultiIndex([('p', 's'),
('q', 't'),
('r', 'u'),
('r', 'v'),
('s', 'w'),
('s', 'x')],
)
The levels in MultiIndex...
[['p', 'q', 'r', 's'], ['s', 't', 'u', 'v', 'w', 'x']]
Get the locations in MultiIndex...
slice(4, 6, None)