Saving data for each iteration of a for loop

Question

Jason 2013-2-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/63077-saving-data-for-each-iteration-of-a-for-loop

I am writing a program that generates two random numbers, a random x and y value for a single point, within a for loop. This point correlates to a central value for a 5x5 pixel gaussian spot that is being added to an image. My goal is to place a large amount of these spots, without overlapping, randomly over the image, which I can currently do. However, I would then like to save the central locations of each point so I can use the same central points on another image. Right now to attempt to save the point location within my for loop I am using

A = cell(NumberOfSpots,2);
for n = 1 : 1 : NumberOfSpots;
    r1 = randi(ArraySizeX-6,1,1)+3;
    r2 = randi(ArraySizeY-6,1,1)+3;
    A{n} = [r1,r2];
...(gaussian spot code)
end
disp(A)
which shows 
A =
    [1x2 double]    []
    [1x2 double]    []
    [1x2 double]    []
    [1x2 double]    []
    [1x2 double]    []
    [1x2 double]    []
    [1x2 double]    []
    [1x2 double]    []
    [1x2 double]    []
    [1x2 double]    []