bundles / scipy latest / scipy / optimize / _lsq / common / update_tr_radius

function

`scipy.optimize._lsq.common:update_tr_radius`

source: /scipy/optimize/_lsq/common.py :222

Signature

   def     update_tr_radius (    Delta    ,    actual_reduction    ,    predicted_reduction    ,    step_norm    ,    bound_hit      )

Summary

Update the radius of a trust region based on the cost reduction.

Returns

Delta : float: New radius.
ratio : float: Ratio between actual and predicted reductions.

Aliases

scipy.optimize._lsq.common.update_tr_radius