Why is Autocorrelation not working correctly??
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hi,
please help!
I am trying to run autocorr function. it's located in C:\Program Files\MATLAB\R2014a\toolbox\econ\econ
however, the function returns:
"Undefined function 'autocorr' for input arguments of type 'double'."
please help!
S. O. S.
回答（2 个）
Salman Salman
2015-2-12
0 个投票
Type in
which autocorr
at the command line and when you type
license('test','econometrics_toolbox')
you should see it return a value of 0 or 1. If it returns 0, then you don’t have the toolbox installed, if not then I suggest trying xcorr. By using the same array twice, the cross correlation should be equal to an autocorrelation.
crossCorrelation = xcorr(signal, signal); % This is the 1D case
crossCorrelation = xcorr2(signal, signal); % This is the 2D case
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