how to plot exel data by loop
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I have an Excel file that has 381 rows, and as shown in the figure in column F, I want the numbers 1 to be drawn together and  the numbers 2 to be drawn together, ...

2 Comments
  Walter Roberson
      
      
 on 26 Jan 2022
				You have six numeric columns in addition to the grouping column. How do you want each segment to be drawn ?
Accepted Answer
  Walter Roberson
      
      
 on 26 Jan 2022
        filename = 'TheFile.xlsx';
T = readtable(filename);
[G, uids] = findgroups(T{:,6});
hold on
h = splitapply(@(X,Y) plot(X, Y), T{:,4}, T{:,5}, G);
hold off
xlim auto; ylim auto
group_names = "Group " + string(uids(:));
legend(h, group_names);
More Answers (1)
  Biraj Khanal
 on 26 Jan 2022
        I am still learning and would do this: 
T=readtable('filename');
D1=[];
E1=[];
D2= []; E2=[];
for i = 1: height(T)
    if T.F (i) == 1
        D1(end+1) = T.D(i);
        E1(end+1) = T.E(i);
     elseif T.F(i) == 2
        D2(end+1) = T.D(i);
        E2(end+1) = T.E(i); 
    end
end
figure
plot(D1,E1)
hold on 
plot (D2,E2)
I am sure there is a more efficient way to do it. 
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