void ttoggle_panel::set_value(const unsigned selected)
{
if(selected == get_value()) {
return;
}
state_num_ = selected % num_states();
set_is_dirty(true);
}
void perturb_emissions( double amount=0.2 )
{
assert(amount <= 1.0); assert(amount >= 0.0);
typedef typename Algo::probability_type P;
typedef LogspaceDouble<P> logspace_t;
const size_t N = num_states(*_model);
const size_t S = num_symbols(*_model);
for( size_t state=0; state < N; ++state)
{
if( _model->is_silent(state) ) continue;
for( size_t symbol=0; symbol<S; ++symbol )
{
const P orig = logspace_t(_model->e(state, symbol), true);
const P random = _random();
const P perturbed =
orig * (1-amount)
+ random * amount;
_model->SetEmissionProbability(state,
_model->get_symbol(symbol),
perturbed); // accepts probability in real space
}
}
_model->normalize_emissions();
#ifndef NO_TESTS
tests::test_emissions_valid_pdf<Algo>(*_model);
#endif //NO_TESTS
}
// check_state_index checks that the specified index is within valid bounds. If
// it isn't, the member function throws a InvalidStateIndexError exception.
void TransitionFn::check_state_index(int index) const {
if (index < 0 || index >= num_states())
throw Util::InvalidStateIndexError(id_, index);
}
void set_value_bool(const bool value)
{
assert(num_states() == 2);
return set_value(value);
}
bool get_value_bool() const
{
assert(num_states() == 2);
return get_value() != 0;
}