This is an internal (non-exported) function. This help page provides additional documentation mainly intended for developers and expert users.
expand_cov(Ulist, grid, usepointmass = TRUE)
This takes the covariance matrices in Ulist and multiplies them by the grid values If usepointmass is TRUE then it adds a null component.
a list of covarance matrices
a grid of scalar values by which the covariance matrices are to be sc
if TRUE adds a point mass at 0 (null component) to the list