Mercurial > dive4elements > river
changeset 7707:cead6df5b7b3
Variance is defined as the sum of squared differences.
| author | Tom Gottfried <tom.gottfried@intevation.de> |
|---|---|
| date | Wed, 18 Dec 2013 12:39:18 +0100 |
| parents | 8f1a5d0802b5 |
| children | a4cef1b17b2b |
| files | artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/BedQualityCalculation.java |
| diffstat | 1 files changed, 1 insertions(+), 1 deletions(-) [+] |
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--- a/artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/BedQualityCalculation.java Wed Dec 18 09:53:44 2013 +0100 +++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/BedQualityCalculation.java Wed Dec 18 12:39:18 2013 +0100 @@ -318,7 +318,7 @@ double sig = 0d; for (i = 0; i < size; i++) { - sig += ps[i] * Math.exp(phis[i] - phiM); + sig += ps[i] * Math.pow((phis[i] - phiM), 2); } double deviation = Math.sqrt(sig); return deviation;