boolean function ( DenseMatrix64F arg0 ) { return MatrixFeatures . isDiagonalPositive ( arg0 ) ; }
this is a fairly light weight check to see of a covariance matrix is valid . it checks to see if the diagonal elements are all positive , which they should be if it is valid . not all invalid covariance matrices will be caught by this method . concode_field_sep double TOL concode_field_sep void randomVector concode_elem_sep boolean invert concode_elem_sep boolean invert concode_elem_sep int isValid