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annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/fixings/fitting/SQRTFunction.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>
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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 import org.apache.commons.math3.stat.StatUtils;
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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13
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 * @author Gernot Belger
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 final class SQRTFunction {
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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18 private final ArraySubstraction substraction;
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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19
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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20 public SQRTFunction(final double[] observations) {
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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21 this.substraction = new ArraySubstraction(observations);
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
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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24 public double calc_sqrt(final double[] values) {
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.
Gernot Belger <g.belger@bjoernsen.de>
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26 final double[] difference = this.substraction.evaluate(values);
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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27
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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28 return StatUtils.sumSq(difference);
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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29 }
0380717105ba Implemented alternative fitting strategy for Log-Linear function.
Gernot Belger <g.belger@bjoernsen.de>
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30 }
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