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diff --git a/fuzzylite/src/m/compare.m b/fuzzylite/src/m/compare.m
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--- a/fuzzylite/src/m/compare.m
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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/>.
-
- fuzzylite (R) is a registered trademark of FuzzyLite Limited.
- */
-}%
-
-function [engine] = compare(fisFile, fldFile, delimiter, hasMetadata)
-if (nargin < 3)
- delimiter = ' ';
-end
-if (nargin < 4)
- hasMetadata = true;
-end
-
-engine = readfis(fisFile);
-flMatrix = dlmread(fldFile, delimiter, hasMetadata ~ = 0, 0);
-
-if (length(engine.input) + length(engine.output) ~ = size(flMatrix, 2))
- error('fuzzylite:compare.m', 'Number of inputs and outputs in engine differ from FLD matrix');
-end
-
-if (isempty(engine.andMethod))
- engine.andMethod = 'min';
-end
-if (isempty(engine.orMethod))
- engine.orMethod = 'max';
-end
-
-engine.inputValues = flMatrix(1 : end, 1 : length(engine.input));
-engine.outputValues = evalfis(engine.inputValues, engine);
-engine.flOutputValues = flMatrix(1 : end, (length(engine.input) + 1) : (length(engine.input) + length(engine.output)));
-engine.outputDiff = engine.outputValues - engine.flOutputValues;
-engine.fld = [engine.inputValues engine.outputValues engine.flOutputValues engine.outputDiff];
-engine.nanfreeDiff = engine.outputDiff;
-engine.nanfreeDiff(find(isnan(engine.nanfreeDiff))) = 0;
-engine.mse = nansum(engine.outputDiff.^2) / size(engine.outputDiff, 1);
-engine.quantiles = prctile(engine.nanfreeDiff, 0 : 25 : 100);
-
-end
-
-
-