AI engineering glossary · NumPy pandas visualization
What is np.newaxis?
np.newaxis (also called None indexing): An alias for None that, placed inside an index, inserts a new axis of length 1 into an array. This turns a flat array into a column or row and is the usual way to make shapes line up for broadcasting.
np.newaxis: an example
With x of shape (5,), x[:, np.newaxis] has shape (5, 1), so it can be combined with a shape (3,) array to give a (5, 3) result.
Related terms
More NumPy pandas visualization terms
Where you learn it
np.newaxis is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.