source: prextra/testmc.m @ 160

%TESTMC More classifier tests
%
% E = TESTMC(A,W,TYPE)
% E = TESTMC(A*W,TYPE)

function e = testmc(a,w,varargin)

prtrace(mfilename);

if nargin < 1
        error('Insufficient parameters given')
end

isdataset(a);

if nargin == 1
        d = a;
        type = {'conf'};
elseif ismapping(w)
        d = a*w;
        if nargin < 3
                type = {'conf'};
        else
                type = varargin;
        end
elseif isstr(w)
        d = a;
        type = {w};
elseif iscell(w)
        d = a;
        type = w;
else
        error('Illegal call')
end

d = d*maxc;
I = matchlablist(getlablist(d),getfeatlab(d));
J = I(d.nlab); % J(i) is the column of the true label of object i
e = zeros(1,length(type));
m = size(d,1);
for j=1:length(type)
        switch(type{j})
                case 'conf'
            d = +normm(d,1);
                        dd = d([1:m]'+(J-1)*m);
                        e(j) = 1-mean(dd);
                otherwise
                        error('Illegal type')
        end
end