pg.evolution.Lambda

Accessible via pg.evolution.Lambda.

class Lambda(fn)[source]

Bases: pg.evolution.Operation

A lambda operation.

Methods:

call(inputs, global_state[, step])

Subclasses should override this method.
call(inputs, global_state, step=0)[source]

Subclasses should override this method.

The global_state and step are optional for the subclasses’ call signature.

Return type:

List[Any]

Parameters:

  • inputs – A list of values as inputs.

  • global_state – An AttributeDict object as the global state container, which is readable/writable during the operation.

  • step – Number of examples historically proposed, which can be used for determining a cross over schedule.

Returns:

A list of values as output of current operation.