as.vector.rv coerces a given
rv object into a vector;
matrices lose their dimension attributes, but
rv objects (since they are considered to be “vectors”).
(currently not used)
as.vector.rv removes the dimension attribute and returns the rv object.
Needed for compatibility with code that uses
Jouni Kerman firstname.lastname@example.org
Kerman, J. and Gelman, A. (2007). Manipulating and Summarizing Posterior Simulations Using Random Variable Objects. Statistics and Computing 17:3, 235-244.