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annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/fixings/fitting/TargetFunction.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>
parents:
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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>
parents:
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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>
parents:
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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 TargetFunction {
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 double[] discharge;
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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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 public TargetFunction(final double[] discharge) {
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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20 this.discharge = discharge;
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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21 }
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 public double[] calc_stages(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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24
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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25 final double[] waterlevels = new double[this.discharge.length];
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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26 for (int i = 0; i < this.discharge.length; i++)
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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27 waterlevels[i] = a * Math.log(b + m * this.discharge[i]);
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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28
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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29 return waterlevels;
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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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 }
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