diff options
author | Johannes Schauer <josch@debian.org> | 2015-07-07 11:12:00 +0200 |
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committer | Johannes Schauer <josch@debian.org> | 2015-07-07 11:12:00 +0200 |
commit | d210b3addc8ffed7214afd8c7882e700fbcc38c5 (patch) | |
tree | ded15607f7f24f83d2d0d7c542265c0a97af577a /fuzzylite/src/defuzzifier/Bisector.cpp |
fuzzylite (5.1+dfsg-1) unstable; urgency=medium
* new upstream version (Closes: #777858)
* removed debian/patches/20140705-minor-improvements-on-building-script as
upstream integrated it. Adjust build options in d/rules accordingly.
* delete debian/patches/20140714-building-from-objects-just-once and
debian/patches/20141027-fix-some-spelling as they have been applied
upstream
* install usr/lib/*/pkgconfig/fuzzylite.pc in fuzzylite-dev
* SONAME bump from 5.0 to 5.1, so renaming libfuzzylite5.0 to
libfuzzylite5.1
* add debian/patches/pkgconfig_installdir to install pkgconfig file in
correct location
# imported from the archive
Diffstat (limited to 'fuzzylite/src/defuzzifier/Bisector.cpp')
-rw-r--r-- | fuzzylite/src/defuzzifier/Bisector.cpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/fuzzylite/src/defuzzifier/Bisector.cpp b/fuzzylite/src/defuzzifier/Bisector.cpp new file mode 100644 index 0000000..ee4d2fc --- /dev/null +++ b/fuzzylite/src/defuzzifier/Bisector.cpp @@ -0,0 +1,85 @@ +/* + 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/defuzzifier/Bisector.h" + +#include "fl/term/Accumulated.h" +#include "fl/term/Term.h" + +namespace fl { + + Bisector::Bisector(int resolution) + : IntegralDefuzzifier(resolution) { + } + + Bisector::~Bisector() { + + } + + std::string Bisector::className() const { + return "Bisector"; + } + + scalar Bisector::defuzzify(const Term* term, scalar minimum, scalar maximum) const { + if (not fl::Op::isFinite(minimum + maximum)) { + return fl::nan; + } + if (maximum - minimum > _resolution) { + FL_DBG("[accuracy warning] the resolution <" << _resolution << "> " + "is smaller than the range <" << minimum << ", " << maximum << ">. In order to " + "improve the accuracy, the resolution should be at least equal to the range."); + } + scalar dx = (maximum - minimum) / _resolution; + + int counter = _resolution; + int left = 0, right = 0; + scalar leftArea = 0, rightArea = 0; + scalar xLeft = minimum, xRight = maximum; + while (counter-- > 0) { + if (fl::Op::isLE(leftArea, rightArea)) { + xLeft = minimum + (left + 0.5) * dx; + leftArea += term->membership(xLeft); + left++; + } else { + xRight = maximum - (right + 0.5) * dx; + rightArea += term->membership(xRight); + right++; + } + } + + //Inverse weighted average to compensate + scalar bisector = (leftArea * xRight + rightArea * xLeft) / (leftArea + rightArea); + return bisector; + } + + Bisector* Bisector::clone() const { + return new Bisector(*this); + } + + Defuzzifier* Bisector::constructor() { + return new Bisector; + } + + +} |