データ準備
df=pd.DataFrame(np.random.randn(5,5))
df.columns=list('ABCDE')
df.iloc[1,1]=np.nan
B列のNull値を抽出
isnull()を使用
df[df['B'].isnull()]
B列のNull値以外を抽出
isnull()で抽出を否定（~）で抽出
df[~(df['B'].isnull())]
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pandasでNull値やNull値以外を抽出する方法
Last updated at Posted at 2020-04-23
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