For Loop - Extract Data

Hello guys,

I have a function in a for loop and I want to get different values for different timestamps. In order to plot the results, I need the values from the for loop. The function fy gives me a [4,1] matrix and all I want is a "result" matrix with all values from the loop. I know that the dimensions do not fit, but I can't come up with a solution. Thanks for helping!

CODE

fy = @(t) (V*expm(D.*t)*inv(V))*x0;

for i = 1:20
    y(i) = fy(i);
end

ERROR

Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.

[Mathieu NOE]

for i = 1:20

y(:,i) = fy(i);

end

Answer 1

[Ameer Hamza]

You can insert the returned values in colums. For example

fy = @(t) (V*expm(D.*t)*inv(V))*x0;

y = zeros(4, 20);
for i = 1:20
    y(:, i) = fy(i);
end