function plot_2d(data1,data2,DATA,IHD,ALL_CATEGORIES)

% plots pairs of data in 2d

%data1=data1(:,5:end);
%ALL_CATEGORIES=ALL_CATEGORIES(5:end);

    num_params=size(data1,2);

    for param_idx=1:num_params
%         mean_all=MEAN_DATA_ALL(:,param_idx);


        for param_idx2=param_idx:num_params

            figure(param_idx+param_idx2+5)


            scatter(data1(IHD==0,param_idx),data1(IHD==0,param_idx2),'xr')
            hold on
            scatter(data1(IHD==1,param_idx),data1(IHD==1,param_idx2),'ob')




            xlabel([ALL_CATEGORIES{param_idx}]);
            ylabel([ALL_CATEGORIES{param_idx2}]);

        end
        
        
        
        
%         data = rand(1, 100);
% [N, X] = hist(data, 0:0.1:1);
% 
% subplot(2, 1, 1);
% hist(data, 0:0.1:1);
% 
% subplot(2, 1, 2);
% bar(X, N./sum(N), 1);
        
    end




end