fuz_fand.m

来自「FISMAT accommodates different arithmetic」· M 代码 · 共 28 行

function f = fuz_fand(gamma,ua,ub)

% f=fuz_fand(gamma,ua,ub)
%
% The "fuzzy and" operator is defined as
%
% u(ua,ub) = g*min(ua,ub))+0.5*(1-g)*(ua+ub).        0<g<1.
% 
% The parameter gamma indicates the degree of nearness to the strict logical
% meaning of "and". 
% For gamma=1 the "fuzzy and" is equal to the minimum operator.
% For gamma=0 the "fuzzy and" is equal to the arithmetic mean.
%
% FSTB - Fuzzy Systems Toolbox for MATLAB
% Copyright (c) 1993-1996 by Olaf Wolkenhauer
% Control Systems Centre at UMIST
% Manchester M60 1QD, UK
%
% 24-Feb-1994
 
[m,resx]=size(ua);
if m==4                        % Sets in compact trapeziodal form.
  resx=200;                    % Convert them in the appriote form.
  [ua,ub]=fuz_conv(ua,ub,resx);
end;

f = gamma.*min(ua,ub)+0.5.*(1-gamma).*(ua+ub);