如何判断dataframe里某一位置元素为NAN?求指点一下
尝试:data.iloc[0,0] is np.nan不行
尝试代码:
import numpy as np
import pandas as pd
data = pd.DataFrame(data=np.ones([4,4]))
data.iloc[0,0] =np.nan
print(data.iloc[0,0])
print(data.iloc[0,0] is np.nan)
print(np.nan is np.nan)
运行结果:
nan
False
True