spleaf.cov.Cov.loglike_grad

Cov.loglike_grad(*args, **kwargs)

Compute the gradient of the log-likelihood (loglike()) with respect to the residuals and to the initial parameters (see grad_param()).

Returns:

grad_y(n,) ndarray

Gradient of the log-likelihood with respect to the residuals \(y\).

…

See grad_param().