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R7172/codes/helpers/bp/bp_solve_cvx.m
4bd89d382eedmaster

bp_solve_cvx.m
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			cvx_precision best;
			% cvx_solver SDPT3
			cvx_solver sedumi
			cvx_begin
			variable x_cvx(d)
			minimize 1/2*norm(x_cvx,1)
			subject to
			A*x_cvx == b
			cvx_end

			opt_val = cvx_optval;

			tm1 = zeros(size(x_cvx));
			tm1(x_cvx < -1e-10) = x_cvx(x_cvx < -1e-10);
			tm2 = zeros(size(x_cvx));
			tm2(x_cvx > 1e-10) = x_cvx(x_cvx > 1e-10);
			qq = [tm2; abs(tm1)];
			params.x_cvx = [qq; sqrt(qq)];