fracidfun

FRACIDFUN Compute fractional time-domain identification cost function.

   Usage: z = fracidfun(x,y,u,t,opt)

          opt.type - 'gl', 'oust' or 'ref'
          opt.finddelay - true/false, whether to use the delay parameter
                          for model estimation
          opt.wb, opt.wh, opt.N - parameters to be used
                                  with 'oust' or 'ref'
          opt.fix - identification type, 'n' for free identification,
                    'c' to fix coefficients, 'e' to fix exponents
          opt.fixpoly - a matrix [zeroPolyLength; polePolyLength],
                        if length is zero, the polynomial is considered
                        fixed and derived from initial model. Both lengths
                        cannot be zero at once.
          opt.G - initial model