Defines which optimization method will be used to find regression coefficients estimates. Several different optimization algorithms are supported (see Dew Math Optimization assembly help for more on this topic):

• optSimplex : Nelder-Mead optimization method.
• optMarquardt : Marquardt optimization method.
• optBFGS : Quasi-Newton optimization method (Broyden-Fletcher-Goldfarb-Shanno Hessian update).
• optDFP: Quasi-Newton optimization method (Davidson-Fletcher-Power Hessian update).
• optConjGradFR: Conjugate Gradient optimization method (Fletcher-Reeves).
• optConjGradPR : Conjugate Gradient optimization method (Polak-Ribiere).

TMtxNonLinReg Properties