?? svcoutput.m
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function predictedY = svcoutput(trnX,trnY,tstX,ker,alpha,bias,actfunc)%SVCOUTPUT Calculate SVC Output%% Usage: predictedY = svcoutput(trnX,trnY,tstX,ker,alpha,bias,actfunc)%% Parameters: trnX - Training inputs% trnY - Training targets% tstX - Test inputs% ker - kernel function% beta - Lagrange Multipliers% bias - bias% actfunc- activation function (0(default) hard | 1 soft) %% Author: Steve Gunn (srg@ecs.soton.ac.uk) if (nargin < 6 | nargin > 7) % check correct number of arguments help svcoutput else if (nargin == 6) actfunc = 0; end n = size(trnX,1); m = size(tstX,1); H = zeros(m,n); for i=1:m for j=1:n H(i,j) = trnY(j)*svkernel(ker,tstX(i,:),trnX(j,:)); end end if (actfunc) predictedY = softmargin(H*alpha + bias); else predictedY = sign(H*alpha + bias); end end
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