cr.sparse.opt.prox_l1_pos

cr.sparse.opt.prox_l1_pos(q=1.0)[source]

Returns a prox-capable wrapper for the function \(f(x) = \| q x \|_1 + I({x \geq 0})\)

Returns

A prox-capable function

Return type

ProxCapable

The domain of \(f\) is restricted to non-negative vectors. This is enforced by the indicator function component \(I({x \geq 0})\) in the definition of \(f\).