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PaGMO
1.1.5
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Base class for migration selection policies. More...
#include <base_s_policy.h>
Public Member Functions | |
| base_s_policy (const double &rate=1, rate_type type=absolute) | |
| Constructor from migration rate and type. More... | |
| virtual | ~base_s_policy () |
| Trivial destructor. More... | |
| virtual base_s_policy_ptr | clone () const =0 |
| Clone method. More... | |
| virtual std::vector< population::individual_type > | select (population &pop) const =0 |
| Select individuals to emigrate from the given population. More... | |
 Public Member Functions inherited from pagmo::migration::base | |
| base (const double &, rate_type) | |
| Constructor from migration rate and type. More... | |
| population::size_type | get_n_individuals (const population &) const |
| Get number of individuals to migrate from/to input population. More... | |
| std::string | human_readable () const |
| Return human readable representation. More... | |
| virtual | ~base () |
| Destructor. More... | |
Friends | |
| class | boost::serialization::access |
Additional Inherited Members | |
| Protected Member Functions inherited from pagmo::migration::base | |
| virtual std::string | human_readable_extra () const |
| Return extra information in human readable representation. More... | |
| Static Protected Member Functions inherited from pagmo::migration::base | |
| template<class ForwardIterator , class T > | |
| static void | iota (ForwardIterator first, ForwardIterator last, T value) |
| Iota function, usefull to fill iterator range with increasing values. More... | |
| Protected Attributes inherited from pagmo::migration::base | |
| double | m_rate |
| Migration rate. More... | |
| rate_type | m_type |
| Migration rate type. | |
Base class for migration selection policies.
The task of a migration selection policy is to select in a population the individuals that will emigrate. The selection is performed by the pure virtual select() method.
The base::get_n_individuals() method for this class is meant to represent the number of individuals emigrating from the population.
Definition at line 54 of file base_s_policy.h.
| pagmo::migration::base_s_policy::base_s_policy | ( | const double & | rate = 1, |
| rate_type | type = absolute |
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Constructor from migration rate and type.
By default, one single individual will be selected for migration.
| [in] | rate | migration rate. |
| [in] | type | migration rate type. |
Definition at line 39 of file base_s_policy.cpp.
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virtual |
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pure virtual |
Clone method.
Provided that the derived policy implements properly the copy constructor, virtually all implementations of this method will look like this:
return base_ptr(new derived_policy(*this));
@return migration::base_s_policy_ptr to a copy of this.
Implemented in pagmo::migration::hv_greedy_s_policy, pagmo::migration::best_s_policy, pagmo::migration::hv_best_s_policy, pagmo::migration::best_kill_s_policy, and pagmo::migration::random_s_policy.
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pure virtual |
Select individuals to emigrate from the given population.
This is the method that actually implements the policy. Output vector should contain copies of selected individuals.
| [in,out] | pop | source population. In some cases (see best_kill_s-policy) it can be modified (e.g. killing the selected individual) |
Implemented in pagmo::migration::hv_greedy_s_policy, pagmo::migration::best_s_policy, pagmo::migration::hv_best_s_policy, pagmo::migration::best_kill_s_policy, and pagmo::migration::random_s_policy.
1.8.9.1
