Numpy array using expression

Question

how can I create an np array using expression y1 = x, when x array is already defined

x = [1,2,5,7]

from this array x , I would like to create another array y1 using the expression

y1 = x

using numpy

I believe what you suggest should work: x = numpy.array([1,2,3]) ; y1=x — sdiabr
– sdiabr, Commented Jan 29, 2019 at 10:28

Syrius · Accepted Answer · 2019-01-29 10:29:51Z

1

If you want a copy of the array it would be

import numpy as np
y1 = np.array(x)

Currently you just assign the list from x to y1. With this you create a new numpy array with the values from x.

answered Jan 29, 2019 at 10:29

Syrius

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2 Comments

thanks for the answer, my intention is to use expression y=x or y = 2x like that

Then you need to set x = np.array([1,2,5,7]). Than you can just put y = x or y=2x or whatever you want. But in this case x has to be a numpy array