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view toolboxes/distance_learning/mlr/regularize/regularizeTwoDiag.m @ 0:e9a9cd732c1e tip

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first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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function r = regularizeTwoDiag(W, X, gradient)
%
% r = regularizeTwoDiag(W, X, gradient)
%
%
    d = length(W);

    if gradient
        r = W / d;
    else
        r = sum(sum(W.^2)) / (2 * d);
    end
end