incrementPhi is an internal function for incrementing an exposure record variable.
Specifically, the f_k is incremented by one if the following conditions are simultaneously met:
For the final theta segment k, shadowtest assembly was feasible at least one times in any item position while interim theta segment was k.
incrementPhi(
exposure_record,
segments_to_apply,
segment_prob,
assembly_was_feasible
)incrementPhi returns an updated exposure record.
a named list containing exposure records.
which segments to apply fading to.
a vector containing segment-wise classification probabilities of an ability estimate.
see assemblyInFinalThetaSegmentWasFeasibleAtLeastOnceInInterimThetaSegments.