ffid_bf

PURPOSE ^

FFID_BF Best fractional-order model fit for given frequency response.

SYNOPSIS ^

function [q,n,m,G,J] = ffid_bf(idd, method, init, nord, maxiter)

DESCRIPTION ^

FFID_BF Best fractional-order model fit for given frequency response.

        Searches for a best-fit fractional model satisfying the frequency-
        domain data given (extension to FFID). Uses optimize to determine
        the best parameters

 Usage: [Q,N,M,G,J] = FFID_BF(IDD, METHOD, INIT, NORD, MAXITER)

 where          Q      - best commensurate order
                N,M    - pole and zero polynomial orders
                J      - final error index
                G      - FOTF object

                IDD        - observed frequency-domain data
                METHOD     - method used: can be 'l' for Levy or 'v' for
                             Vinagre
                INIT       - initial guess in form [Q, N, M]
                NORD       - highest polynomial order (default: 10)
                MAXITER    - maximum number of iterations (default:
                             unlimited)

 See also: ffidata, ffid, optimize

CROSS-REFERENCE INFORMATION ^

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