mvregress fails to solve same problem as regress?
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X = 1:10; X=X';
Y = X;
% i.e. just the line y=x
regress(Y,X); % returns "1", as expected
mvregress(X,Y); % returns the following error:
% Error using mvregress (line 452)
% Covariance is not positive-definite.
Am I missing something here?
My definitions of X and Y for mvregress seem to correspond with the documentation...
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