.. _method-multilevel_sampling-convergence_tolerance_target-variance_constraint: """"""""""""""""""" variance_constraint """"""""""""""""""" Allocate samples to target specified variance .. toctree:: :hidden: :maxdepth: 1 **Specification** - *Alias:* None - *Arguments:* None **Description** Minimizes the cost while targeting a certain estimator variance given in keyword ``convergence_tolerance``.