reset method
Implementation
void reset({double defaultValue = 0.0}) {
qTable = List.generate(
nStates,
(_) => List<double>.filled(nActions, defaultValue),
);
if (lambda > 0.0) {
_eTrace = List.generate(
nStates,
(_) => List<double>.filled(nActions, 0.0),
);
}
_steps = 0;
}