Changeset 13784 for trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GaussianProcess/CovarianceFunctions/CovarianceNoise.cs
 Timestamp:
 04/22/16 13:47:35 (5 years ago)
 File:

 1 edited
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trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/GaussianProcess/CovarianceFunctions/CovarianceNoise.cs
r13721 r13784 21 21 22 22 using System; 23 using System.Linq;24 23 using HeuristicLab.Common; 25 24 using HeuristicLab.Core; … … 92 91 cov.CrossCovariance = (x, xt, i, j) => Util.SqrDist(x, i, xt, j, columnIndices, 1.0) < 1e9 ? scale : 0.0; 93 92 if (fixedScale) 94 cov.CovarianceGradient = (x, i, j) => Enumerable.Empty<double>();93 cov.CovarianceGradient = (x, i, j) => new double[0]; 95 94 else 96 cov.CovarianceGradient = (x, i, j) => Enumerable.Repeat(i == j ? 2.0 * scale : 0.0, 1);95 cov.CovarianceGradient = (x, i, j) => new double[1] { i == j ? 2.0 * scale : 0.0 }; 97 96 return cov; 98 97 }
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