Creating random float and float64 arrays in NumPy

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, May 03 '19 at 16:24

score 4 · Accepted Answer · answered May 03 '19 at 16:19

4

You can convert your array after initialization as follow :

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

answered May 03 '19 at 16:19

Alexis Pister

449
3
13

score 1 · Answer 2 · answered May 03 '19 at 16:36

1

You can pass dtype as follows:

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

answered May 03 '19 at 16:36

Umesh

941
5
12

Creating random float and float64 arrays in NumPy

2 Answers2