AndrewWave.
weights
Andrew’s wave weighting function for the IRLS algorithm
The psi function scaled by z
z : array_like
1d array
weights : ndarray
weights(z) = sin(z/a)/(z/a) for |z| <= a*pi weights(z) = 0 for |z| > a*pi
weights(z) = sin(z/a)/(z/a) for |z| <= a*pi
weights(z) = 0 for |z| > a*pi