How to prevent Matlab from rounding small numbers to zero?

Hi,

I am trying to find cross-correlation without using function

xcorr

The code works for large numbers. However, for small numbers the code fail. It's round small numbers to zero. I tried to use

format longE

But it is not working. Any help will be very appreciated.

Thanks

[Image Analyst]

You forgot to attach data.xlsx. Please attach it so people can try your code.

[Walter Roberson]

When you refer to "The code", are you referring to Mathwork's xcorr or to code that you yourself have written?

Answer 1

[Pritesh Shah]

Check the code once again. You can see code of xcorr function using edit xcorr

[Adam Waters]

That helped literally no one

[Walter Roberson]

When people are for some reason not permitted to use a particular function, then they can still often get an understanding of how the function works by using "edit" with the function name.