floor.m

matlab波形优化算法经常要用到的matlab toolbox工具箱:yalmip

function varargout=floor(varargin)
%FLOOR (overloaded)

% Author Johan L鰂berg
% $Id: floor.m,v 1.6 2007/07/29 17:32:28 joloef Exp $

switch class(varargin{1})

    case 'sdpvar' % Overloaded operator for SDPVAR objects. Pass on args and save them.

        x = varargin{1};
        dim = size(x);
        x = reshape(x,prod(dim),1);
        y = [];
        for i = 1:prod(dim)
            y = [y;yalmip('define',mfilename,extsubsref(x,i))];
        end
        y = reshape(y,dim);
        varargout{1} = y;

    case 'char' 

        t = varargin{2};
        X = varargin{3};

        F = set([X-1 <= t <= X]) + set(integer(t));

        varargout{1} = F;
        varargout{2} = struct('convexity','none','monotoncity','none','definiteness','none','model','integer');
        varargout{3} = X;
end
otherwise
    error('Strange type on first argument in SDPVAR/FLOOR');
end