neuralpp/src/synapsis.cpp

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2009-02-18 00:10:57 +01:00
/**************************************************************************************************
* LibNeural++ v.0.2 - All-purpose library for managing neural networks *
* Copyright (C) 2009, BlackLight *
* *
* This program is free software: you can redistribute it and/or modify it under the terms of the *
* GNU General Public License as published by the Free Software Foundation, either version 3 of *
* the License, or (at your option) any later version. This program is distributed in the hope *
* that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for *
* more details. You should have received a copy of the GNU General Public License along with *
* this program. If not, see <http://www.gnu.org/licenses/>. *
**************************************************************************************************/
#include "neural++.h"
using namespace neuralpp;
/**
* @brief Constructor
* @param i Input neuron
* @param o Output neuron
* @param a Activation function
* @param d Derivate for activation function
*/
Synapsis::Synapsis (Neuron* i, Neuron* o, float(*a)(float), float(*d)(float)) {
srand((unsigned) time(NULL));
delta=0;
weight=RAND;
in=i;
out=o;
actv_f=a;
deriv=d;
}
/**
* @brief Constructor
* @param i Input neuron
* @param o Output neuron
* @param w Weight for the synapsis (default: random)
* @param a Activation function
* @param d Derivate for activation function
*/
Synapsis::Synapsis (Neuron* i, Neuron* o, float w, float(*a)(float), float(*d)(float)) {
delta=0;
weight=w;
in=i;
out=o;
actv_f=a;
deriv=d;
}
/**
* @return Reference to input neuron of the synapsis
*/
Neuron* Synapsis::getIn() { return in; }
/**
* @return Reference to output neuron of the synapsis
*/
Neuron* Synapsis::getOut() { return out; }
/**
* @return Weight of the synapsis
*/
float Synapsis::getWeight() { return weight; }
/**
* @return Delta of the synapsis
*/
float Synapsis::getDelta() { return delta; }
/**
* @brief It sets the weight of the synapsis
*/
void Synapsis::setWeight(float w) { weight=w; }
/**
* @brief It sets the delta (how much to change the weight after an update)
* of the synapsis
*/
void Synapsis::setDelta(float d) { delta=d; }