function data_u=chong_2_1(attribute,num1,num2,data)
         data_u=zeros(num2,12);
         train=zeros(num2,2);    
         train(:,1)=data(:,2*attribute-1);
         train(:,2)=[1:num2];
         train=sortrows(train,1);
         data_u(:,2*attribute-1)=train(:,1);
         data_u(:,2*attribute)=train(:,2);
         %xlswrite('attribute.xls',train,'sheet1','a2:b701'); 
         %lymph_train=xlsread('attribute.xls','sheet1','e2:f701');
        leucocyte=zeros(num2,2);
        leucocyte(:,1)=data(:,1);
        %leucocyte(:,1)=xlsread('xiongmen.xls','1','c2:c701');
        leucocyte(:,2)=[1:num2];
        leucocyte_train=zeros(num2,2);
        for i=1:num2
             leucocyte_train(i,1)=leucocyte(train(i,2),1);
             leucocyte_train(i,2)=train(i,2);
        end
        data_u(:,1)=leucocyte_train(:,1);
        data_u(:,2)=leucocyte_train(:,2);
        
         middle=zeros(num2,2);
         middle(:,1)=data(:,3);
         middle(:,2)=[1:num2];
         train=zeros(num2,2);
         for i=1:num2
             middle_train(i,1)=middle(train(i,2),1);
             middle_train(i,2)=train(i,2);
         end
         data_u(:,3)=middle_train(:,1);
         data_u(:,4)=middle_train(:,2);
       %  clear middle i train data(num1+1:num2+num2,1) data(num1+1:num2+num2,2);
         
         lymph=zeros(num2,2);
         lymph(:,1)=data(:,5);
         %lymph(:,1)=xlsread('xiongmen.xls','1','e2:e701');
         lymph(:,2)=[1:num2];
         lymph_train=zeros(num2,2);
         for i=1:num2
             lymph_train(i,1)=lymph(train(i,2),1);
             lymph_train(i,2)=train(i,2);
         end
         data_u(:,5)=lymph_train(:,1);
         data_u(:,6)=lymph_train(:,2);
         %xlswrite('attribute.xls',lymph_train,'sheet1','e2:f701');
        % clear lymph i lymph_train data(num1+1:num2+num2,3);
         %lymph_train=xlsread('attribute.xls','sheet1','e2:f701');
         erythrocyte=zeros(num2,2);
         erythrocyte(:,1)=data(:,7);
         %erythrocyte(:,1)=xlsread('xiongmen.xls','1','f2:f701');
         erythrocyte(:,2)=[1:num2];
         erythrocyte_train=zeros(num2,2);
         for i=1:num2
             erythrocyte_train(i,1)=erythrocyte(train(i,2),1);
             erythrocyte_train(i,2)=train(i,2);
         end
         data_u(:,7)=erythrocyte_train(:,1);
         data_u(:,8)=erythrocyte_train(:,2);
         %xlswrite('attribute.xls',erythrocyte_train,'sheet1','g2:h701');
       %  clear erythrocyte erythrocyte_train i data(num1+1:num2+num2,4);
 
         %lymph_train=xlsread('attribute.xls','sheet1','e2:f701');
         hypo=zeros(num2,2);
         hypo(:,1)=data(:,9);
         %hypo(:,1)=xlsread('xiongmen.xls','1','g2:g701');
         hypo(:,2)=[1:num2];
         hypo_train=zeros(num2,2);
         for i=1:num2
         hypo_train(i,1)=hypo(train(i,2),1);
         hypo_train(i,2)=train(i,2);
         end
         data_u(:,9)=hypo_train(:,1);
         data_u(:,10)=hypo_train(:,2);
         %xlswrite('attribute.xls',hypo_train,'sheet1','i2:j701');
    %     clear hypo_train hypo i data(num1+1:num2+num2,5);
 
         %lymph_train=xlsread('attribute.xls','sheet1','e2:f701');
         platelet=zeros(num2,2);
         platelet(:,1)=data(:,11);
         %platelet(:,1)=xlsread('xiongmen.xls','1','h2:h701');
         platelet(:,2)=[1:num2];
         platelet_train=zeros(num2,2);
         for i=1:num2
             platelet_train(i,1)=platelet(train(i,2),1);
             platelet_train(i,2)=train(i,2);
         end
         data_u(:,11)=platelet_train(:,1);
         data_u(:,12)=platelet_train(:,2);