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diff --git a/fuzzylite/src/term/Gaussian.cpp b/fuzzylite/src/term/Gaussian.cpp
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+/*
+ Author: Juan Rada-Vilela, Ph.D.
+ Copyright (C) 2010-2014 FuzzyLite Limited
+ All rights reserved
+
+ This file is part of fuzzylite.
+
+ fuzzylite is free software: you can redistribute it and/or modify it under
+ the terms of the GNU Lesser General Public License as published by the Free
+ Software Foundation, either version 3 of the License, or (at your option)
+ any later version.
+
+ fuzzylite 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 Lesser General Public License
+ for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with fuzzylite. If not, see <http://www.gnu.org/licenses/>.
+
+ fuzzyliteâ„¢ is a trademark of FuzzyLite Limited.
+
+ */
+
+#include "fl/term/Gaussian.h"
+
+namespace fl {
+
+ Gaussian::Gaussian(const std::string& name,
+ scalar mean, scalar standardDeviation, scalar height)
+ : Term(name, height), _mean(mean), _standardDeviation(standardDeviation) {
+ }
+
+ Gaussian::~Gaussian() {
+ }
+
+ std::string Gaussian::className() const {
+ return "Gaussian";
+ }
+
+ scalar Gaussian::membership(scalar x) const {
+ if (fl::Op::isNaN(x)) return fl::nan;
+ return _height * std::exp((-(x - _mean) * (x - _mean)) / (2 * _standardDeviation * _standardDeviation));
+ }
+
+ std::string Gaussian::parameters() const {
+ return Op::join(2, " ", _mean, _standardDeviation) +
+ (not Op::isEq(_height, 1.0) ? " " + Op::str(_height) : "");
+ }
+
+ void Gaussian::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 fl::Exception(ex.str(), FL_AT);
+ }
+ setMean(Op::toScalar(values.at(0)));
+ setStandardDeviation(Op::toScalar(values.at(1)));
+ if (values.size() > required)
+ setHeight(Op::toScalar(values.at(required)));
+ }
+
+ void Gaussian::setMean(scalar c) {
+ this->_mean = c;
+ }
+
+ scalar Gaussian::getMean() const {
+ return this->_mean;
+ }
+
+ void Gaussian::setStandardDeviation(scalar sigma) {
+ this->_standardDeviation = sigma;
+ }
+
+ scalar Gaussian::getStandardDeviation() const {
+ return this->_standardDeviation;
+ }
+
+ Gaussian* Gaussian::clone() const {
+ return new Gaussian(*this);
+ }
+
+ Term* Gaussian::constructor() {
+ return new Gaussian;
+ }
+
+
+}