applyEligibilityConstraintsToInfo is an internal function for modifying item information using eligibility constraints.
This is known as the big M method.
The function penalizes item information of items that are marked as ineligibile.
This leads to those items being deterred from selected in shadowtest assembly, unless necessary.
applyEligibilityConstraintsToInfo(
info,
eligibility_flag_in_current_theta_segment,
config,
simulation_constants
)applyEligibilityConstraintsToInfo returns an updated item information vector.
a length-ni vector containing item information on each item, intended for shadow-test assembly.
a list containing eligibility flags for the current theta segment.
a config_Shadow object. Use createShadowTestConfig for this.
a named list containing simulation constants.