Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/math/fitting/Linear.java @ 5838:5aa05a7a34b7

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Rename modules to more fitting names.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 15:23:37 +0200
parents flys-artifacts/src/main/java/org/dive4elements/river/artifacts/math/fitting/Linear.java@bd047b71ab37
children 4897a58c8746
rev   line source
5831
bd047b71ab37 Repaired internal references
Sascha L. Teichmann <teichmann@intevation.de>
parents: 3177
diff changeset
1 package org.dive4elements.river.artifacts.math.fitting;
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0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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parents:
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2
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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3 public class Linear
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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4 extends Function
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parents:
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5 {
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6 public static final Derivative DERIVATIVE =
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parents: 2569
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7 new Derivative("W'(Q) = m") {
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8
4dda67a893da FixA: Added the derivatives of all fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2569
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9 @Override
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Sascha L. Teichmann <teichmann@intevation.de>
parents: 3177
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10 public org.dive4elements.river.artifacts.math.Function
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11 instantiate(double [] parameters)
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parents: 2569
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12 {
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parents: 2569
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13 final double m = parameters[0];
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parents: 2569
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14
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bd047b71ab37 Repaired internal references
Sascha L. Teichmann <teichmann@intevation.de>
parents: 3177
diff changeset
15 return new org.dive4elements.river.artifacts.math.Function() {
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parents: 2569
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16 @Override
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parents: 2569
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17 public double value(double Q) {
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18 return m;
4dda67a893da FixA: Added the derivatives of all fitting functions.
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parents: 2569
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19 }
4dda67a893da FixA: Added the derivatives of all fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2569
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20 };
4dda67a893da FixA: Added the derivatives of all fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2569
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21 }
4dda67a893da FixA: Added the derivatives of all fitting functions.
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parents: 2569
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22 };
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parents: 2569
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23
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parents: 3009
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24 public static final Function INSTANCE = new Linear();
585c0b49e696 Added inverses of the fitting functions.
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parents: 3009
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25
2569
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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parents:
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26 public Linear() {
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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27 super("linear", "W(Q) = m*Q + b", new String [] { "m", "b" });
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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28 }
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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29
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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30 @Override
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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31 public double value(double x, double [] parameters) {
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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parents:
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32 return x*parameters[0] + parameters[1];
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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parents:
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33 }
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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parents:
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34
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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35 @Override
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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36 public double [] gradient(double x, double [] parameters) {
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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37 return new double [] { x, 1d };
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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parents:
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38 }
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4dda67a893da FixA: Added the derivatives of all fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2569
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39
4dda67a893da FixA: Added the derivatives of all fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2569
diff changeset
40 @Override
4dda67a893da FixA: Added the derivatives of all fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2569
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41 public Derivative getDerivative() {
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parents: 2569
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42 return DERIVATIVE;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2569
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43 }
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585c0b49e696 Added inverses of the fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3009
diff changeset
44
585c0b49e696 Added inverses of the fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3009
diff changeset
45 @Override
585c0b49e696 Added inverses of the fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3009
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46 public Function getInverse() {
585c0b49e696 Added inverses of the fitting functions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3009
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47 return InvLinear.INSTANCE;
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parents: 3009
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48 }
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parents:
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49 }
0dd58ab7e118 Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
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parents:
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50 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org