Memory consumption while using autocorr2 package

Hello all,

I am trying to use the following package:

https://www.mathworks.com/matlabcentral/fileexchange/86852-autocorr2-two-point-autocorrelation

However, whenever I try to run it, the memory consumption gradual increases until the device freezes, I tried alternating the parameters, same results.

Any idea what is causing this huge memory consumption?, knowing that I run heavier packages with no issues.

Thank you and stay well.

[Jan]

What do you use as input? How do you define, how "heavy" a package is? sin(1:1e12) is not heavy, but will exhaust the memory also.

[Hussein Kokash]

I have alternated the input range, I meant by heavy is I run packages with GUI's that analyze images and has much more size than this one, they work, with this package though, no matter what parameter I use, it still causes memory crash.

I am trying to see which part is causing this by running sections, still no luck.

I just wanted to know which part of the cause could cause this so that I can alter it.

Thanks Jan

[Jan]

I have no problem with running the function to get an auto-correlation for images with 1000x1000 pixels.

Again: What do you use as inputs?

This code does not look "heavy":

x = [];
for k = 1:1e6
    x(k) = k;
end

Due to the missing pre-allocation Matlab has to allocate more than 4 TB of RAM to run this code.

[Hussein Kokash]

I see what you mean now.

I will edit it so it allocates less than that.

Thank you so much!