Does assert_approx_eq exists for ndarray?

Question

I'm referring to the ndarray crate as well as the assert_approx_eq.

My question: Does something like assert_approx_eq exist for ndarray::Array2 etc.?

Currently I'm doing:

for it in mat_a.iter().zip(expect_mat_a.iter()) {
  let (af, bf) = it;
  assert_approx_eq!(af, bf);
}

This is works, but is sub-optimal.

Answer 1

Yes, ndarray has the optional feature approx and with it enabled, it supports the approx crate traits and macros.

use approx::assert_abs_diff_eq;

assert_abs_diff_eq!(af, bf);