Mercurial > dive4elements > river
diff flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/fitting/Linear.java @ 2569:0dd58ab7e118
Added functions to be used for fitting in the "Fixierungsanalyse" and "Extremwertermittlung".
flys-artifacts/trunk@4095 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Mon, 27 Feb 2012 14:16:30 +0000 |
| parents | |
| children | 4dda67a893da |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/fitting/Linear.java Mon Feb 27 14:16:30 2012 +0000 @@ -0,0 +1,20 @@ +package de.intevation.flys.artifacts.math.fitting; + +public class Linear +extends Function +{ + public Linear() { + super("linear", "W(Q) = m*Q + b", new String [] { "m", "b" }); + } + + @Override + public double value(double x, double [] parameters) { + return x*parameters[0] + parameters[1]; + } + + @Override + public double [] gradient(double x, double [] parameters) { + return new double [] { x, 1d }; + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :