Storing a forloop in a matrix
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Hi!
I am writing an optimization script at the moment, but encountered a problem. I am using a for-loop and I want it to store the result in one matrix. However, it overwrites the previous results, and therefore only presents one row as a result in the end.
My basic script:
data = xlsread('coal.xlsx', 'C2:C121')';
for ii=1:40
Rows = zeros(40,3);
Rows (ii,:) = data (ii:40:120)
end
Thanks in advance!
采纳的回答
Geoff Hayes
2015-12-6
Melissa - initialize Rows outside of the for loop because you are just overwriting all those values from previous iterations with zeros whenever you re-instantiate it at the first line of your for loop. Try
Rows = zeros(40,3);
for ii=1:40
Rows (ii,:) = data (ii:40:120)
end
Though I'm not sure that is exactly what you will need since it is unclear on the dimensions of data.
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