How to store Values in a Loop?

11 views (last 30 days)
for t=0:1:10
L(t) = 3*cos(t);
M(t) = diag([L 5*cos(t) 7*cos(t)]);
K(t) = [12e5*cos(t) 18e5*cos(t) 34e5*cos(t);18e5*cos(t) 15e5*cos(t) 12e5*cos(t);13e5*cos(t) 12e5*cos(t) 22e5*cos(t)];
[X,e] = polyeig(K, M)
o = sqrt(e);
fprintf('the freqeuncy is"%d" \n',o)
writematrix(o,'hello/tt.xlsx','sheet',1,'range','A1:A30');
end
Hi, From the above code I am trying to store 10 time series in a single excel file but I can't able to do it and getting a error like "Array indices must be positive integers or logical values". Can anyone please help me in this.
Thank you in Advance.
  4 Comments
naresh bhimchand
naresh bhimchand on 12 Nov 2019
ok bro thank you very much

Sign in to comment.

Accepted Answer

David Hill
David Hill on 12 Nov 2019
for t=0:10
L = 3*cos(t);
M = diag([L 5*cos(t) 7*cos(t)]);
K = [12e5*cos(t) 18e5*cos(t) 34e5*cos(t);18e5*cos(t) 15e5*cos(t) 12e5*cos(t);13e5*cos(t) 12e5*cos(t) 22e5*cos(t)];
[X,e] = polyeig(K, M)%X is a 3x3 matrix, e is 3x1 vector
o(:,t+1) = sqrt(e);%o is a 3x11 matrix when the loop finishes
end
writematrix(o,'hello/tt.xlsx','sheet',1,'range','A1:A30');
The only thing you are writing to file is the variable o; therefore it is the only thing needing to be in an array.
  3 Comments
naresh bhimchand
naresh bhimchand on 12 Nov 2019
I got it, bro.Thanks :)

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!