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Regularized linear regression cost function

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neingeist 2014-11-06 00:53:49 +01:00
parent d93d111106
commit 6530916642
1 changed files with 7 additions and 15 deletions
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12
ex5/linearRegCostFunction.m
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@ -19,16 +19,8 @@ grad = zeros(size(theta));
% You should set J to the cost and grad to the gradient. % You should set J to the cost and grad to the gradient.
% %
J = 1/(2*m) * sum(((X*theta)-y).^2) ...
+ lambda/(2*m) * sum(theta(2:end).^2);
% ========================================================================= % =========================================================================