python numpy array boolean indexing

IJustWannaHelp answered on October 15, 2020 Popularity 9/10 Helpfulness 3/10

answer python numpy array boolean indexing

related boolean indexing python numpy

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x = np.array([1., -1., -2., 3])
x[x < 0] = 20
x

Output:
array([  1.,  20.,  20.,   3.])

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Source: Grepper

Tags: boolean-indexing numpy python

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Contributed on Oct 15 2020

IJustWannaHelp

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import numpy as np

arr = np.array([1, 2, 3, 4, 5])
mask = np.array([True, False, True, False, False])

result = arr[mask]
print(result)

[1 3]

Popularity 8/10 Helpfulness 1/10 Language python

Source: chat.openai.com

Tags: boolean-indexing bool

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Contributed on Jul 01 2023

Sulaiman Mutawalli

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