function [codebook,scheme] = code_OneVsOne(m)% Generate the codebook for multiclass classification with One-Versus-One encoding.%% codebook = code_OneVsOne(m)%%  see also:%    codelssvm% Copyright (c) 2002,  KULeuven-ESAT-SCD, License & help @ http://www.esat.kuleuven.ac.be/sista/lssvmlabnb = m*(m-1)/2;codebook = eps+zeros(nb,m);t=1;for i=1:m-1,  for j=i+1:m,    codebook(t,i) = 1;    codebook(t,j) = -1;    t=t+1;  endend% output forat, where 'b' stands for binary discriminatorscheme = []; for i=1:nb, scheme = [scheme 'b']; end