sigmf.m

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% SIGMF 僔僌儌僀僪嬋慄儊儞僶僔僢僾娭悢
% 
% SIGMF(X,PARAMS) 偼丄X 偱寁嶼偟偨僔僌儌僀僪儊儞僶僔僢僾娭悢偱偁傞峴楍
% 傪弌椡偟傑偡丅PARAMS 偼丄偙偺儊儞僶僔僢僾娭悢偺宆偲埵抲傪寛掕偡傞2梫慺
% 儀僋僩儖偱偡丅摿偵丄偙偺儊儞僶僔僢僾娭悢偺幃偼丄偮偓偺偲偍傝偱偡丅
%
%    SIGMF(X,[A,C]) = 1./(1 + EXP(-A*(X-C)))
%
% 椺戣
%    x = (0:0.2:10)';
%    y1 = sigmf(x,[-1 5]);
%    y2 = sigmf(x,[-3 5]);
%    y3 = sigmf(x,[4 5]);
%    y4 = sigmf(x,[8 5]);
%    subplot(211); plot(x,[y1 y2 y3 y4]);
%    y1 = sigmf(x,[5 2]);
%    y2 = sigmf(x,[5 4]);
%    y3 = sigmf(x,[5 6]);
%    y4 = sigmf(x,[5 8]);
%    subplot(212); plot(x,[y1 y2 y3 y4]);
%    set(gcf,'name','sigmf','numbertitle','off');
%
% 嶲峫    DSIGMF, EVALMF, GAUSS2MF, GAUSSMF, GBELLMF, MF2MF, PIMF, 
%         PSIGMF, SMF, TRAPMF, TRIMF, ZMF.



%   Copyright 1994-2004 The MathWorks, Inc.