private void init() {
        dim = mu.length;
        Cholesky cholesky = sigma.cholesky(false);
        sigmaInv = cholesky.inverse();
        sigmaDet = cholesky.det();
        sigmaL = cholesky.getL();
        pdfConstant = (dim * Math.log(2 * Math.PI) + Math.log(sigmaDet)) / 2.0;
    }
private void init ( ) { dim = mu . length ; Cholesky cholesky = sigma . cholesky ( false ) ; sigmaInv = cholesky . inverse ( ) ; sigmaDet = cholesky . det ( ) ; sigmaL = cholesky . getL ( ) ; pdfConstant = ( dim * Math . log ( 2 * Math . PI ) + Math . log ( sigmaDet ) ) / 2.0 ; }
Initialize the object.