FIMS  v0.11.0
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logistic.hpp
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1
9#ifndef POPULATION_DYNAMICS_SELECTIVITY_LOGISTIC_HPP
10#define POPULATION_DYNAMICS_SELECTIVITY_LOGISTIC_HPP
11
12#include "common/fims_math.hpp"
13#include "common/fims_vector.hpp"
14#include "selectivity_base.hpp"
15
16namespace fims_popdy {
17
28template <typename Type>
29struct LogisticSelectivity : public SelectivityBase<Type> {
30 fims::Vector<Type>
36 inflection_point;
42 fims::Vector<Type> slope;
43
44 LogisticSelectivity() : SelectivityBase<Type>() {}
45
46 virtual ~LogisticSelectivity() {}
47
62 virtual const Type evaluate(const Type &x) {
63 return fims_math::logistic<Type>(inflection_point[0], slope[0], x);
64 }
65
72 virtual const Type evaluate(const Type &x, size_t pos) {
73 return fims_math::logistic<Type>(inflection_point.get_force_scalar(pos),
74 slope.get_force_scalar(pos), x);
75 }
76};
77
78} // namespace fims_popdy
79
80#endif /* POPULATION_DYNAMICS_SELECTIVITY_LOGISTIC_HPP */
fims::Vector
Definition fims_vector.hpp:27
fims_math.hpp
A collection of mathematical functions used in FIMS.
fims_math::logistic
const Type logistic(const Type &inflection_point, const Type &slope, const Type &x)
The general logistic function.
Definition fims_math.hpp:243
fims_vector.hpp
Establishes the FIMS Vector class.
fims_popdy
The population dynamics of FIMS.
Definition catch_at_age.hpp:45
selectivity_base.hpp
Declares the SelectivityBase class which is the base class for all selectivity functors.
fims_popdy::LogisticSelectivity
LogisticSelectivity class that returns the logistic function value from fims_math.
Definition logistic.hpp:29
fims_popdy::LogisticSelectivity::slope
fims::Vector< Type > slope
How quickly selectivity changes with age around the inflection point, per year of age....
Definition logistic.hpp:42
fims_popdy::LogisticSelectivity::evaluate
virtual const Type evaluate(const Type &x)
Method of the logistic selectivity class that implements the logistic function from FIMS math.
Definition logistic.hpp:62
fims_popdy::LogisticSelectivity::evaluate
virtual const Type evaluate(const Type &x, size_t pos)
Method of the logistic selectivity class that implements the logistic function from FIMS math.
Definition logistic.hpp:72
fims_popdy::LogisticSelectivity::inflection_point
fims::Vector< Type > inflection_point
The age at which 50% of fish are selected for models that start at age zero and each age bin represen...
Definition logistic.hpp:36
fims_popdy::SelectivityBase::SelectivityBase
SelectivityBase()
Constructor.
Definition selectivity_base.hpp:34