www.pudn.com > Classification_toolbox.part01.rar > Discriminability.m

function d_tag = Discriminability(mu1, sigma1, mu2, sigma2, p1) 
 
% Find the discriminability given means and covariances of single gaussian distributions 
% Inputs: 
%   mu1         - Mean for class 1 
%   sigma1      - Covariance matrix for class 1 
%   mu2         - Mean for class 2 
%   sigma2      - Covariance matrix for class 2 
%   p1          - Probability of class 1 
% 
% Outputs 
%	d_tag     	- Discriminability 
 
sigma   = (sigma1+sigma2)/2; 
 
d_tag   = abs(mu2-mu1)/sigma;