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If I have a numpy array

a = np.repeat([i for i in range(10)], 1000)

and another numpy array

b = np.arange(10, 20)

How do I insert the values of b into a based on index? So that all 0 = 10, 1 = 11 and so on. Is there something similar to matlab where you can say b(a)

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  • 2
    Isn't it just b[a] ? Commented Apr 28, 2022 at 13:16
  • Sorry. My bad, you are right Commented Apr 28, 2022 at 13:20

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Hope this helps you,

import numpy as np
a = np.repeat([i for i in range(10)], 1000)
b = np.arange(10, 20)
a=b[a]
print(a)

The output:
[10 10 10 ... 19 19 19]

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