Storing data from a for loop in a matrix
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Just getting started with Matlab and am running into some issues. I need to store the ouput from each step of the For Loop in a matrix. The following is my code:
% Set initial paramters.
Cl_initial=3;
R=0.5;
u=0.5;
Clt=0;
% Solve for Cl residual.
for t=[68.92 109.97 287.22 116.95 171.89 90.3 103.54];
Clt=[t; Cl_initial*(1-R)/(1-R*exp(-u*t))];
end
The way I have it set up now only saves the very last calculation in the matrix. Any help would be appreciated!
采纳的回答
Hi
There is a search feature in the forum, you will find hundreds of examples for this.
But your problem is that you are overwriting Clt in each iteration. The solution is to save each iteration in a new column (or row). Generally speaking, it is always good to pre-initialize data containers (in this case a matrix) before filling it in a loop.
Something like:
% Set initial paramters.
Cl_initial=3;
R=0.5;
u=0.5;
t=[68.92 109.97 287.22 116.95 171.89 90.3 103.54];
Nt = length(t);
Clt = zeros(2,Nt);
% Solve for Cl residual.
for i = 1:Nt
Clt(:,i) = [ t(i) ; Cl_initial*(1-R)/(1-R*exp(-u*t(i)))];
end
更多回答（1 个）
Azzi Abdelmalek
2016-4-7
Cl_initial=3;
R=0.5;
u=0.5;
Clt=[];
% Solve for Cl residual.
for t=[68.92 109.97 287.22 116.95 171.89 90.3 103.54]
Clt=[Clt;t Cl_initial*(1-R)/(1-R*exp(-u*t))]
end
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