How do I remove NaN values from a NumPy array?
[1, 2, NaN, 4, NaN, 8] ⟶ [1, 2, 4, 8]
How do I remove NaN values from a NumPy array? [1, 2, NaN, 4,
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To remove NaN values from a NumPy array
x:Explanation
The inner function
numpy.isnanreturns a boolean/logical array which has the valueTrueeverywhere thatxis not-a-number. Since we want the opposite, we use the logical-not operator~to get an array withTrues everywhere thatxis a valid number.Lastly, we use this logical array to index into the original array
x, in order to retrieve just the non-NaN values.