Calculate E_q[ln p(x)] where q(x) = IG(x | a, b) and p(x) = IG(x | a0, b0)

E_q[ln p(x)] where x ~ IG(a0, b0) and q(x) = IG(x | a, b)

Usage

ig_E_lpdf(a0, b0, a, b)

Arguments

a0

Inverse gamma prior parameter

b0

Inverse gamma prior parameter

a

Inverse gamma variational parameter

b

Inverse gamma variational parameter