How can i make xlsread read successive excel worksheets ?

I have a problem reading data from successive excel worksheets within a loop... The size of data in successive sheets are different, when I type the size of stored matrix ... it always shows the size of data in first worksheet ... why ?

[Jan]

Post your code, such that we can know, what you are actually doing. What does "when I type the size of stored matrix" mean exactly?

[VBBV]

[~,All]=xlsfinfo('C:\Users\bhargava\Desktop\Student data\III Year MID EXAM consolidated even sem 2016-17.xlsx');

        for k=1:numel(All)
            Sheets{k}=xlsread('III Year MID EXAM consolidated even sem 2016-17.xlsx',All{k});
        end
[sss ddd]  =  xlsread('III Year MID EXAM consolidated even sem 2016-17.xlsx',All{17});
ALFe = []; ALFo = []; kk = 1;

pp = 1; while pp <= sss(:,1)

        [dataPe dataNe Rawe] = xlsread('III Year MID EXAM consolidated even sem 2016-17.xlsx',All{pp});
  [ss dd]  =  xlsread('III Year MID EXAM consolidated even sem 2016-17.xlsx',All{7});
        TTe = dataPe(:,9:6:end);
  
        [nxe nye]=size(TTe);
  ne(pp) = nxe;
        index = ss(1,9) % total
        indT = ss(1,5)  % theory
        indL = ss(1,7)  % lab

        Le = TTe(:,indT+1:end)
        Te = TTe(:,1:indT);

        for i = 1:nxe  % row  %%passed in all subjects 
            for k = 1:indT

                if Te(i,k) > 0.5*40 
                    APSe(i,k) = 1;
                else 
                    APSe(i,k) = 0;
    end            
            end
        end

        for i = 1:nxe  % row
            for k = 1:indL

                if Le(i,k) > 0.4*100
                    VLe(i,k) = 1;
                else
        VLe(i,k) = 0;
    end                
            end
        end

Totale = [APSe VLe];

for i = 1:ne(kk) % row %% passed in all subjects P1 = sum(Totale(i,:)); if P1 == index %% All pass APe(i) = 1; else APe(i) = 0; end end

for i = 1:ne(kk) % row %% passed in all subjects P2 = sum(Totale(i,:)); if P2 > 3 %% Atleast three subjects passed ATPe(i) = 1; else ATPe(i) = 0; end end

for i = 1:ne(kk) % row %% passed in all subjects P3 = sum(Totale(i,:)); if P3 == 0 %% All fail ALFe(i) = 1; else ALFe(i) = 0; end end

ASPe = sum(APe) ASTPe = sum(ATPe) ASLFe = sum(ALFe) RPe(pp) = ASPe; RTe(pp) = ASTPe; RLe(pp) = ASLFe;

pp = pp + 1;

end

Re = [ne;RPe; RTe; RLe] bar([1:sss(:,1)],Re'); grid on legend('Total','All Pass','Passed >3','All fail')

Answer 1

[Image Analyst]

Use

fileName = 'myExample.xlsx'
[status,sheets,xlFormat] = xlsfinfo(fileName )

to get the sheet names, then use xlsread() to open them

for k = 1 : length(sheets)
    data = xlsread(fileName, sheets{k});
    % Now do something with data....
end