Focus Functions

Focus functions define transformations applied to individual unit estimates. They consist of two components:

1. Focus Function: Maps estimates to a scalar parameter of interest.

2. Gradient: Computes derivatives for optimization.

Available focus functions classes:

Class	Description
BaseFocusFunction	Abstract base class. Subclass and implement focus_function() and gradient().
InlineFocusFunction	Convenience class for creating focus functions from callables.
IdentityFocusFunction	Convenience class for creating an identity focus function for when the estimates are already the focus parameters.

See also

• Tutorials for worked examples

• Averagers for the different averagers.