pandas は特定のインデックスでの行の選択を実装します

>>> import numpy as np >>> import pandas as pd >>> index=np.array([2,4,6,8,10]) >>> data=np.array([3,5,7,9,11]) >>> data=pd.DataFrame({'num':data},index=index) >>> print(data) num 2 3 4 5 6 7 8 9 10 11 >>> select_index=index[index>5] >>> print(select_index) [ 6 8 10] >>> data['num'].loc[select_index] 6 7 8 9 10 11 Name: num, dtype: int32 >>>

>>> data['num'].iloc[2:5] 6 7 8 9 10 11 Name: num, dtype: int32 >>> data['num'].iloc[[2,3,4]] 6 7 8 9 10 11 Name: num, dtype: int32 >>>