change to Wishart conjugacy relationship
change to Wishart conjugacy relationship

nimble-dev/nimble,nxdao2000/nimble,NLMichaud/nimble,nxdao2000/nimble,nimble-dev/nimble,NLMichaud/nimble,nxdao2000/nimble,nimble-dev/nimble,NLMichaud/nimble,NLMichaud/nimble,nxdao2000/nimble,nimble-dev/nimble,nimble-dev/nimble