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np random array

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M1k3y answered on March 4, 2021 Popularity 10/10 Helpfulness 5/10

answer np random array

related numpy generate random array

related np.random.rand()

np random array

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# uniform distribution over [0, 1)
np.random.rand(3, 3)
# [[0.20966286 0.72581506 0.78926387]
#  [0.85719525 0.00163033 0.45001818]
#  [0.17630303 0.40184026 0.89585902]]

# discrete uniform distribution in [0, 10)
np.random.randint(0, 10, size=[3,3])
# [[6 8 4]
#  [1 3 3]
#  [6 9 7]]

# normal distribution around 5 with standard deviation of 2
np.random.normal(5, 2, size=[3,3])
# [[3.8768528  5.73747086 3.63564872]
#  [5.49814587 2.62757122 3.61948982]
#  [3.36409537 7.86431236 5.16509868]]

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Source: numpy.org

Tags: np python random

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Contributed on May 30 2022

M1k3y

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numpy generate random array

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from numpy import random
randArray = random.random(size=(2,4))
 
#输出
#array([[0.93848018,0.42005976,0.81470729,0.98797783],[0.12242703,0.42756378,0.59705163,0.36619101]])

Popularity 10/10 Helpfulness 4/10 Language python

Source: blog.csdn.net

Tags: generate generat

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Contributed on Jul 27 2022

Spotless Swiftlet

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np.random.rand()

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# train test split
df = pd.read_csv('file_location')
mask = np.random.rand(len(df)) < 0.8
train  = df[mask]
test = df[~mask]

Popularity 10/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: python py

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Contributed on Mar 04 2021

Delightful Dove

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np random array

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numpy generate random array

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