Creating random float and float64 arrays in NumPy [duplicate]

Question

I would like to create two random arrays in NumPy for a fixed, given shape. np.random.randn(A,B,C) creates a random array of float64, if i am not mistaken, how do i create one filled with float32?

If i am mistaken, then my question still pertains, just the other way around.

mat = np.random.randn(1, 3, 4).astype(np.float32) for example — Sheldore
– Sheldore, Commented May 3, 2019 at 16:24

Alexis Pister · Accepted Answer · 2019-05-03 16:19:53Z

4

You can convert your array after initialization as follow :

mat = np.random.randn(A,B,C)
mat = mat.astype(np.float32)

answered May 3, 2019 at 16:19

Alexis Pister

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Umesh · Accepted Answer · 2019-05-03 16:36:09Z

1

You can pass dtype as follows:

np.array(np.random.randn(1,2,3), dtype=np.float32)

answered May 3, 2019 at 16:36

Umesh

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