Employs "Temporary Parameter Immobilization" [Skahill and Doherty, J. Hydrol., 329, 122-139, 2006] (also referred to as "Automatic User Intervention") if the Levenberg-Marquardt algorithm is used. Insensitive parameters are fixed if the reduction in the objective function is less than ofredmin (default = 10%). If ofredmin is negative, insensitive parameters are fixed if the objective function is increased by less than -ofredmin; however, any trial parameter set that reduces the objective function is accepted.
>>> SELECT parameter
>>>> IMMOBILIZE parameter if objective function is reduced by less than : 20 %