39 using namespace internal;
47 Eigen::VectorXf diag=map.diagonal();
48 map.diagonal().setZero();
50 auto term_1=map.array().square().sum();
52 auto term_3=(map*map).array().sum();
56 auto variance_estimate=2*(term_1+term_2/(B-1)/(B-2)-2*term_3/(B-2))/B/(B-3);
57 return variance_estimate;
all of classes and functions are contained in the shogun namespace