How to download the "xcorr" inbuilt function

Hi everybody,

Actually my question is simple and in the title... I need to cross-correlate two vector so I'd liked to get this function to do it.

Thanks in advance,

Virginie

Answer 1

[Matt J]

You need to buy the Signal Processing Toolbox.

[Matt J]

 conv(x(:),flipud(y(:)))

should be the same as xcorr(x,y) pretty much.

Answer 2

[Shashank Prasanna]

Its fairly easy to implement, or you can definitely find something on FEX that will work for you:

http://www.mathworks.com/matlabcentral/fileexchange/index?utf8=%E2%9C%93&term=cross+correlation