Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/fitting/Function.java @ 2744:c1f2e792704a
FixA: Calculate Delta W/t, too.
flys-artifacts/trunk@4479 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Wed, 23 May 2012 18:27:45 +0000 |
| parents | 8a6ce15ced7f |
| children | 4dda67a893da |
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| 2743:10e6400d4166 | 2744:c1f2e792704a |
|---|---|
| 1 package de.intevation.flys.artifacts.math.fitting; | 1 package de.intevation.flys.artifacts.math.fitting; |
| 2 | |
| 3 import org.apache.commons.math.FunctionEvaluationException; | |
| 2 | 4 |
| 3 import org.apache.commons.math.optimization.fitting.ParametricRealFunction; | 5 import org.apache.commons.math.optimization.fitting.ParametricRealFunction; |
| 4 | 6 |
| 5 import de.intevation.flys.utils.DoubleUtil; | 7 import de.intevation.flys.utils.DoubleUtil; |
| 6 | 8 |
| 51 } | 53 } |
| 52 | 54 |
| 53 public double [] getInitialGuess() { | 55 public double [] getInitialGuess() { |
| 54 return initialGuess; | 56 return initialGuess; |
| 55 } | 57 } |
| 58 | |
| 59 public de.intevation.flys.artifacts.math.Function instantiate( | |
| 60 final double [] parameters | |
| 61 ) { | |
| 62 return new de.intevation.flys.artifacts.math.Function() { | |
| 63 | |
| 64 @Override | |
| 65 public double value(double x) { | |
| 66 try { | |
| 67 return Function.this.value(x, parameters); | |
| 68 } | |
| 69 catch (FunctionEvaluationException fee) { | |
| 70 return Double.NaN; | |
| 71 } | |
| 72 } | |
| 73 }; | |
| 74 } | |
| 56 } | 75 } |
| 57 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : | 76 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |