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annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/fixings/fitting/SqrtErrorFunction.java @ 9646:0380717105ba

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Implemented alternative fitting strategy for Log-Linear function.
author Gernot Belger <g.belger@bjoernsen.de>
date Mon, 02 Dec 2019 17:56:15 +0100
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9646
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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2 * Software engineering by
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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3 * Björnsen Beratende Ingenieure GmbH
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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5 *
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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6 * This file is Free Software under the GNU AGPL (>=v3)
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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8 * documentation coming with Dive4Elements River for details.
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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9 */
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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10 package org.dive4elements.river.artifacts.model.fixings.fitting;
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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11
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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12 /**
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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13 * @author Gernot Belger
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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14 */
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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15 final class SqrtErrorFunction {
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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16
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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17 private final SQRTFunction sqrtFunction;
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
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18
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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19 private final TargetFunction targetFunction;
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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20
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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21 public SqrtErrorFunction(final double[] obsWaterlevels, final TargetFunction targetFunction) {
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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22
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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23 this.targetFunction = targetFunction;
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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24 this.sqrtFunction = new SQRTFunction(obsWaterlevels);
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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25 }
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
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26
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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27 public double value(final double a, final double b, final double m) {
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
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28 return calc_sqrt_trans(a, b, m);
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
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29 }
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
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30
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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31 private double calc_sqrt_trans(final double a, final double b, final double m) {
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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32
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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33 final double[] waterlevels = this.targetFunction.calc_stages(a, b, m);
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
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34 return this.sqrtFunction.calc_sqrt(waterlevels);
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
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35 }
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
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36 }
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