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How to solve the for loop with row and column?

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Hello. I have an equation which is in a for loop. The equation is like that,
for i=1:length(LIN.fK)
Where length(LIN.fK)=131
uK= voltage (69x96 matrix)
LIN.fK= from bus (131x1 matrix)
LIN.tK= to bus (131x1 matrix)
Grid.YKK= bus admittance matrix (69x69 matrix)
The thing is if I do this for loop it shows answers like 131 answers. However, my voltage(uK) is basically (69x96) matrix. so I want the result in such a way that it will show (131x96 matrix). Here 131 is number of lines, 96 means time steps. Could anyone help me regarding this?

Answers (2)

Walter Roberson
Walter Roberson on 26 Jan 2018
"uK= voltage (69x96 matrix)"
But you have
which indexes the 69x96 matrix with a single subscript. Is LIN.fK linear indices into the entire uK matrix?
I suspect you might have wanted
uK(LIN.fK(i,1), :)

Arifur Rahman
Arifur Rahman on 26 Jan 2018
Thank you so much, it works. I have to follow this thing in bigger equation as well.


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