Compute the natural log of the PDF for the parameters in an E-family design
log_prior_pdf(
alpha,
bpopdescr,
ddescr,
return_gradient = F,
return_hessian = F
)
A parameter vector.
Matrix defining the fixed effects, per row (row number = parameter_number) we should have:
column 1 the type of the distribution for E-family designs (0 = Fixed, 1 = Normal, 2 = Uniform, 3 = User Defined Distribution, 4 = lognormal and 5 = truncated normal)
column 2 defines the mean.
column 3 defines the variance of the distribution (or length of uniform distribution).
Matrix defining the diagonals of the IIV (same logic as for
the bpopdescr
).
Should the gradient be returned.
Should the hessian be returned?