About the numpy.linspace

Question

I have read a code is like this x = np.linspace(0, 100, 10)[:, None]

I know the meaning of np.linspace(0,100,10)

But I don't know what does '[:,None]' mean

Answer 1

The [:, None] adds an extra axis making a two-dimensional the array of shape (10, 1). A more explicit version would be:

x = np.linspace(0, 100, 10)[:, np.newaxis]