Only the value corresponding to the last loop of a for loop being saved in the output array
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Sreekanth Nandakumar
on 4 Mar 2019
Edited: Sreekanth Nandakumar
on 7 Mar 2019
Hello,
I have the below problem regarding for loop.
I am trying to save the result of values of a statement inside a for loop. But the output array is only saving the calculation of the last loop. Can anyone please help me on how to solve this issue? I am posting my code below.
data=xlsread('22245_1.xlsx');
Cap = 12000; % I have initialized a value here
Volt=data(:,14); % I wanted to separate single column arrays for easy coding since the main file has 36000 rows and 20 coumns
C_Chge=round (data(:,16));
C_dis=data(:,17);
SOC=zeros(1,20);
perc = 1:20;
N=numel(perc);
OCV = zeros(N,1);
for k=1:N
SOC = (k*Cap)/20
A = find(C_Chge(:,1)== SOC);
OCV(k)=Volt(A); % I am getting an error with this statement - Unable to perform assignment because the left and right sides have a different number of elements.
end
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Accepted Answer
Andrei Bobrov
on 5 Mar 2019
c = 12000;
k = (1:20)';
soc = k*c/numel(k);
lo = ismember(round(data(:,16)),soc);
ocv = data(lo,14);
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More Answers (2)
Bob Thompson
on 4 Mar 2019
You're getting the error because OCV(k) is a single element, and I suspect that Volt(A) is not.
For the problem of only getting results from the last loop, you need to index your results within the loop to be saved with each loop iteration. Here I have set the results from each iteration to form a 3D dimension of the interior elements.
for k=1:N
SOC(:,:,k) = (k*Cap)/20
A(:,:,k) = find(C_Chge(:,1)== SOC(:,:,k));
OCV(:,:,k)=Volt(A(:,:,k));
end
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