maxcut_load_data.m
6fe0f6653d68master

maxcut_load_data.m
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			% This function shows the available datasets for maxcut problem in the
			% specified directory and loads the chosen data.


			% Read the available datasets in the directory
			dataset = dir('data/Maxcut/*.mat');

			if userinput
			for k = 1:length(dataset)
			fprintf('%1d - %15s %2d bytes \n', k, dataset(k).name, dataset(k).bytes);
			end

			while true
			kk = input('Choose data: \n');
			if kk>0 && kk<length(dataset)+1
			load(['data/Maxcut/',dataset(kk).name])
			dataNum = kk;
			break
			else
			fprintf('Enter a valid number(min:%d, max:%d) \n',1, length(dataset));
			end
			end
			end

			fprintf('Loading data... %s\n', dataset(dataNum).name)
			load(['data/Maxcut/',dataset(dataNum).name])
			fprintf('Succecfully loaded \n\n')

			%% Problem setup
			n = size(Problem.A,1);
			L = spdiags(Problem.A*ones(n,1),0,n,n) - Problem.A;
			clearvars Problem;
			A_id = @(u, v) sum(u.*v, 2);
			At_id = @(y) diag(y);
			y = ones(n,1);
			C = -0.25*L;