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Diffstat (limited to 'src/mathfunc.h')
| -rw-r--r-- | src/mathfunc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mathfunc.h b/src/mathfunc.h index b9f3c73..8a2ea64 100644 --- a/src/mathfunc.h +++ b/src/mathfunc.h @@ -26,12 +26,18 @@ using namespace std; using namespace Eigen; +bool has_nan(const vector<double> v); + double VectorVar(const gsl_vector *v); void CenterMatrix(gsl_matrix *G); void CenterMatrix(gsl_matrix *G, const gsl_vector *w); void CenterMatrix(gsl_matrix *G, const gsl_matrix *W); void StandardizeMatrix(gsl_matrix *G); double ScaleMatrix(gsl_matrix *G); +bool isMatrixPositiveDefinite(const gsl_matrix *G); +bool isMatrixIllConditioned(const gsl_matrix *G, double max_ratio=4.0); +bool isMatrixSymmetric(const gsl_matrix *G); +bool checkMatrixEigen(const gsl_matrix *G, double min=1e-5); double SumVector(const gsl_vector *v); double CenterVector(gsl_vector *y); void CenterVector(gsl_vector *y, const gsl_matrix *W); |