discriminability.m

模式识别matlab工具箱,包括SVM,ICA,PCA,NN等等模式识别算法,很有参考价值

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;