IF/Else

[Skazka123]

if df['returns'] >= 1:
df['izmenenie']=1
else:
df['izmenenie']=0

Почему возникает ошибка: ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all(). И как это исправить?

 

[regnor]

Truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all()

I want to filter my dataframe with an or condition to keep rows with a particular column's values that are outside the range [-0.25, 0.25]. I tried: df = df[(df['col'] < -0.25) or (df['col'] &gt...

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