bundles / scipy latest / scipy / optimize / _lsq / dogbox / dogleg_step

function

`scipy.optimize._lsq.dogbox:dogleg_step`

source: /scipy/optimize/_lsq/dogbox.py :108

Signature

   def     dogleg_step (    x    ,    newton_step    ,    g    ,    a    ,    b    ,    tr_bounds    ,    lb    ,    ub      )

Summary

Find dogleg step in a rectangular region.

Returns

step : ndarray, shape (n,): Computed dogleg step.
bound_hits : ndarray of int, shape (n,): Each component shows whether a corresponding variable hits the initial bound after the step is taken: * 0 - a variable doesn't hit the bound. * -1 - lower bound is hit. * 1 - upper bound is hit.
tr_hit : bool: Whether the step hit the boundary of the trust-region.

Aliases

scipy.optimize._lsq.dogbox.dogleg_step