1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/*
fuzzylite (R), a fuzzy logic control library in C++.
Copyright (C) 2010-2017 FuzzyLite Limited. All rights reserved.
Author: Juan Rada-Vilela, Ph.D. <jcrada@fuzzylite.com>
This file is part of fuzzylite.
fuzzylite is free software: you can redistribute it and/or modify it under
the terms of the FuzzyLite License included with the software.
You should have received a copy of the FuzzyLite License along with
fuzzylite. If not, see <http://www.fuzzylite.com/license/>.
fuzzylite is a registered trademark of FuzzyLite Limited.
*/
#include "fl/term/Spike.h"
namespace fl {
Spike::Spike(const std::string& name, scalar center, scalar width, scalar height)
: Term(name, height), _center(center), _width(width) { }
Spike::~Spike() { }
std::string Spike::className() const {
return "Spike";
}
Complexity Spike::complexity() const {
return Complexity().comparison(1).arithmetic(1 + 3).function(2);
}
scalar Spike::membership(scalar x) const {
if (Op::isNaN(x)) return fl::nan;
return Term::_height * std::exp(-std::abs(10.0 / _width * (x - _center)));
}
std::string Spike::parameters() const {
return Op::join(2, " ", _center, _width) +
(not Op::isEq(getHeight(), 1.0) ? " " + Op::str(getHeight()) : "");
}
void Spike::configure(const std::string& parameters) {
if (parameters.empty()) return;
std::vector<std::string> values = Op::split(parameters, " ");
std::size_t required = 2;
if (values.size() < required) {
std::ostringstream ex;
ex << "[configuration error] term <" << className() << ">"
<< " requires <" << required << "> parameters";
throw Exception(ex.str(), FL_AT);
}
setCenter(Op::toScalar(values.at(0)));
setWidth(Op::toScalar(values.at(1)));
if (values.size() > required)
setHeight(Op::toScalar(values.at(required)));
}
void Spike::setCenter(scalar center) {
this->_center = center;
}
scalar Spike::getCenter() const {
return this->_center;
}
void Spike::setWidth(scalar width) {
this->_width = width;
}
scalar Spike::getWidth() const {
return this->_width;
}
Spike* Spike::clone() const {
return new Spike(*this);
}
Term* Spike::constructor() {
return new Spike;
}
}
|
