loop

for n=1:length(theta_o)

AF(n,:)=1/N*(sin(...

end

here please explain AF(n,:) means

Answer 1

[Matt Tearle]

The n th row of the matrix variable AF. The colon stands for all indices, and MATLAB indexes by row-then-column. Hence, AF(n,:) means "nth row, all columns".

Answer 2

[Shivani Dixit]

With reference to selecting elements from a matrix ':' refers to selecting the elements from starting index to ending index. In the code AF(n,:) means selecting the nth row and all the columns. Basically it means selecting full n'th' row.

For more information you can have a look at :

https://www.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab.html?s_tid=srchtitle