How to solve the for loop with row and column?

Hello. I have an equation which is in a for loop. The equation is like that,

for i=1:length(LIN.fK)

linecurrent(i)=(conj(uK(LIN.fK(i,1)))-conj(uK(LIN.tK(i,1))))*(conj(Grid.YKK(LIN.fK(i),LIN.tK(i)))); 

end

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?

Answer 1

[Walter Roberson]

"uK= voltage (69x96 matrix)"

But you have

uK(LIN.fK(i,1))

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), :)

Answer 2

[Arifur Rahman]

Thank you so much, it works. I have to follow this thing in bigger equation as well.