check if value is nan

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showing results for - "check if value is nan"
Maximiliano
08 Jun 2019
1import numpy as np
2
3mynan = np.nan
4mynum = 18
5
6print("NaN? : ", np.isnan(mynan)) # Use np.isnan() to test
7print("NaN? : ", np.isnan(mynum))
8
9# Results:
10# Nan? : True
11# NaN? : False
Leonardo
16 Feb 2017
1math.isnan(n)
source
Nolann
30 Aug 2019
1import math
2x = float('nan')
3math.isnan(x)
4True
source
David
06 Jan 2018
1import math
2print math.isnan(float('NaN'))OutputTrue
3print math.isnan(1.0)OutputFalse
4
source
Nele
10 Jul 2017
1Number.isNaN(123)
Ibrahim
19 Jan 2020
1>>> pd.isnull(None)
2True
3
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