Why is np.sum only showing the last element of my np.array?-CodePudding

Here is my code:

N=4
for i in range(N):
    random_array=np.array([random.random()])
    print(random_array)
print(np.sum(a=random_array))

When I run it, it returns:

[0.09264558]
[0.02441606]
[0.90380555]
[0.51249256]
0.5124925563367195

Why is it only returning the last entry of the array and not summing over them all? Help is much appreciated, thanks.

CodePudding user response：

It's because every iteration the array is overridden, I guess you meant:

N=4
random_array = []
for i in range(N):
    random_array.append(random.random())
    print(random_array)
print(np.sum(a=random_array))

Example out:

[0.33994599217182764]
[0.33994599217182764, 0.11622954323723345]
[0.33994599217182764, 0.11622954323723345, 0.7288062755665261]
[0.33994599217182764, 0.11622954323723345, 0.7288062755665261, 0.18166667717600626]
1.3666484881515935