numpy.random.random()
是用於在numpy中進行隨機采樣的函數之一。它返回指定形狀的數組,並在half-open間隔中填充隨機浮點數[0.0, 1.0).
用法: numpy.random.random(size=None)
參數:
size :[int或int元組,可選]輸出形狀。如果給定的形狀是例如(m,n,k),則繪製m * n * k個樣本。默認值為無,在這種情況下,將返回單個值。
Return :間隔中的隨機浮點數數組[0.0, 1.0).
如果未提供尺寸,則為單個此類隨機浮點數。
代碼1:
# Python program explaining
# numpy.random.random() function
# importing numpy
import numpy as geek
# output array
out_arr = geek.random.random(size = 3)
print ("Output 1D Array filled with random floats:", out_arr)
輸出:
Output 1D Array filled with random floats: [ 0.21698734 0.01617363 0.70382199]
代碼2:
# Python program explaining
# numpy.random.random() function
# importing numpy
import numpy as geek
# output array
out_arr = geek.random.random(size =(2, 4))
print ("Output 2D Array filled with random floats:", out_arr)
輸出:
Output 2D Array filled with random floats: [[ 0.95423066 0.35595927 0.76048569 0.90163066]
[ 0.41903408 0.85596254 0.21666156 0.05734769]]
代碼3:
# Python program explaining
# numpy.random.random() function
# importing numpy
import numpy as geek
# output array
out_arr = geek.random.random((2, 3, 2))
print ("Output 3D Array filled with random floats:", out_arr)
輸出:
Output 3D Array filled with random floats: [[[ 0.07861816 0.79132387]
[ 0.9112629 0.98162851]
[ 0.0727613 0.03480279]]
[[ 0.11267727 0.07631742]
[ 0.47554553 0.83625053]
[ 0.67781339 0.37856642]]]
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注:本文由純淨天空篩選整理自jana_sayantan大神的英文原創作品 Random sampling in numpy | random() function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。