In 1.4.2, you introduce the subscript $u$ for $\rho$. However, in the formal notation of the variance-covariance matrix, only $\rho$ is defined (so without the $u$). I assume this is a mistake? I corrected it in this PR.
Thanks for making the book available for everyone!
In 1.4.2, you introduce the subscript $u$ for $\rho$. However, in the formal notation of the variance-covariance matrix, only $\rho$ is defined (so without the $u$). I assume this is a mistake? I corrected it in this PR.
Thanks for making the book available for everyone!