Python pandas找出空值的行
import pandas as pdimport numpy as np n = np.arange(20, dtype=float).reshape(5,4)n[2,3] = np.nanindex = ['index1', 'index2', 'index3', 'index4', 'index5']columns = ['column1', 'column2', 'column3', 'column4']frame3 = pd.DataFrame(data=n, index=
