Skip test that uses np.nanmedian for older versions of Numpy, and do other skip-related cleanup.
Skip test that uses np.nanmedian for older versions of Numpy, and do other skip-related cleanup.
low-sky/spectral-cube,e-koch/spectral-cube,keflavich/spectral-cube,radio-astro-tools/spectral-cube,jzuhone/spectral-cube