11.4.3.2. Accessing the results

Once the estimate is done (via the classic estimateParameters method), the results can be accessed by calling three methods, detailed below. All three functions share the same prototype: they take no arguments and return a TMatrixD instance containing the corresponding information. The functions are:

• getParameterValueMatrix: it returns a TMatrixD with one raw filled with the calibrated values of the parameters calculated from the analytical formula (one-dimensional);

• getParameterCovarianceMatrix: it returns a TMatrixD filled with the covariance matrix of the estimated parameters (symmetric and (\(nPar\), \(nPar\))-dimensional);

• getTransfParameterValueMatrix: it returns a TMatrixD with one raw filled with the transformed values of the parameters, in case setParameterTransformationFunction has been correctly applied (one-dimensional).