libperiodicfunctions.h
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1 /********************************************************************************
2  * Neural Network Framework. *
3  * Copyright (C) 2005-2011 Gianluca Massera <emmegian@yahoo.it> *
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19 
20 #ifndef LIBPERIODICFUNCTIONS_H
21 #define LIBPERIODICFUNCTIONS_H
22 
23 #include "nnfwconfig.h"
24 
30 #include "outputfunction.h"
31 
32 namespace farsa {
33 
37 class FARSA_NNFW_API PeriodicFunction : public OutputFunction {
38 public:
40  PeriodicFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
42  virtual ~PeriodicFunction() { /* Nothing to do */ };
44  virtual void apply( DoubleVector& inputs, DoubleVector& outputs ) = 0;
57  virtual void configure(ConfigurationParameters& params, QString prefix);
67  virtual void save(ConfigurationParameters& params, QString prefix);
68  double phase;
69  double span;
70  double amplitude;
71 };
72 
76 class FARSA_NNFW_API SawtoothFunction : public PeriodicFunction {
77 public:
79  SawtoothFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
81  virtual ~SawtoothFunction() { /* Nothing to do */ };
83  virtual void apply( DoubleVector& inputs, DoubleVector& outputs );
94  virtual void configure(ConfigurationParameters& params, QString prefix);
102  virtual void save(ConfigurationParameters& params, QString prefix);
103 };
104 
108 class FARSA_NNFW_API TriangleFunction : public PeriodicFunction {
109 public:
111  TriangleFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
113  virtual ~TriangleFunction() { /* Nothing to do */ };
115  virtual void apply( DoubleVector& inputs, DoubleVector& outputs );
126  virtual void configure(ConfigurationParameters& params, QString prefix);
134  virtual void save(ConfigurationParameters& params, QString prefix);
135 };
136 
140 class FARSA_NNFW_API SinFunction : public PeriodicFunction {
141 public:
143  SinFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
145  virtual ~SinFunction() { /* Nothing to do */ };
149  double frequency();
151  virtual void apply( DoubleVector& inputs, DoubleVector& outputs );
162  virtual void configure(ConfigurationParameters& params, QString prefix);
170  virtual void save(ConfigurationParameters& params, QString prefix);
171 };
172 
176 class FARSA_NNFW_API PseudoGaussFunction : public PeriodicFunction {
177 public:
179  PseudoGaussFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
181  virtual ~PseudoGaussFunction() { /* Nothing to do */ };
183  virtual void apply( DoubleVector& inputs, DoubleVector& outputs );
194  virtual void configure(ConfigurationParameters& params, QString prefix);
202  virtual void save(ConfigurationParameters& params, QString prefix);
203 };
204 
205 }
206 
207 #endif
208