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列出加載到熊貓數據框'df2'中的人的屬性。爲了清理,我想用np.nan替換零值(0或'0')。Python Pandas將多列零替換爲南
df2.dtypes
ID object
Name object
Weight float64
Height float64
BootSize object
SuitSize object
Type object
dtype: object
工作代碼設定值爲零np.nan:
df2.loc[df2['Weight'] == 0,'Weight'] = np.nan
df2.loc[df2['Height'] == 0,'Height'] = np.nan
df2.loc[df2['BootSize'] == '0','BootSize'] = np.nan
df2.loc[df2['SuitSize'] == '0','SuitSize'] = np.nan
相信這可以用類似的/短的方式進行:
df2[["Weight","Height","BootSize","SuitSize"]].astype(str).replace('0',np.nan)
然而上述不起作用。零點保持在df2。如何解決這個問題?
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