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if condition not meet, leave blank python code

Time:03-25

how should we write the code that tell python to leave empty cell in dataframe when the condition is not meet?

I tries " " like excel but it does not work. I tried 'space' also not work either.

eg. np.where((df['Adj Close']> df['signal']), 1, 'what should be the sign here? ' )

Thanks in advance.

I am expecting the code to return blank cell in pandas dataframe when I run the code.

CodePudding user response:

If need empty numeric value use missing value NaN:

np.where(df['Adj Close']> df['signal'], 1, np.nan)
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