el0ps.datafit.BaseDatafit

class el0ps.datafit.BaseDatafit

Base class for datafit functions.

This class represent mathematical functions expressed as

\[\begin{split}\begin{align*} f : \mathbb{R}^m &\rightarrow \mathbb{R} \cup \{+\infty\} \\ \mathbf{w} &\mapsto f(\mathbf{w}) \end{align*}\end{split}\]

that are proper, lower-semicontinuous, convex, and differentiable with a Lipschitz-continuous gradient.

__init__(*args, **kwargs)

Methods

__init__(*args, **kwargs)
conjugate(w)	Value of the convex conjugate of the function at w.
gradient(w)	Value of gradient at w.
gradient_lipschitz_constant()	Lipschitz constant of the gradient.
value(w)	Value of the function at w.