ITERATE

        FIT\ITERATE [N] [/NOCHECK BASELINE]

    ITERATE tries the GRADIENT technique to improve the last results of  the
    profile  fit. Optional argument N indicates the number of iterations. Do
    not expect spectacular results if the absolute minimum is far away! Typ-
    ically,  this  command  should  be used if the previous fit did not con-
    verge, but seems close enough.  If you are using the  GAUSS  method,  be
    cautious not to change the X unit in the mean time.