From 3c0f89bf53ea681cf8dcaf00df8d4c438fb32b63 Mon Sep 17 00:00:00 2001
From: Max Zwiessele <ibinbei@gmail.com>
Date: Wed, 26 Feb 2014 08:33:45 +0000
Subject: [PATCH] vdtc_missing data corrections

---
 GPy/core/sparse_gp.py                              |  3 +--
 GPy/inference/latent_function_inference/var_dtc.py | 12 ++++++------
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/GPy/core/sparse_gp.py b/GPy/core/sparse_gp.py
index b1a3c12e..15a4e1f8 100644
--- a/GPy/core/sparse_gp.py
+++ b/GPy/core/sparse_gp.py
@@ -2,12 +2,11 @@
 # Licensed under the BSD 3-clause license (see LICENSE.txt)
 
 import numpy as np
-from ..util.linalg import mdot
 from gp import GP
 from parameterization.param import Param
 from ..inference.latent_function_inference import var_dtc
 from .. import likelihoods
-from parameterization.variational import NormalPosterior
+from parameterization.variational import VariationalPosterior
 
 class SparseGP(GP):
     """
diff --git a/GPy/inference/latent_function_inference/var_dtc.py b/GPy/inference/latent_function_inference/var_dtc.py
index 66ab3cbe..fec61204 100644
--- a/GPy/inference/latent_function_inference/var_dtc.py
+++ b/GPy/inference/latent_function_inference/var_dtc.py
@@ -204,14 +204,14 @@ class VarDTCMissingData(object):
     def inference(self, kern, X, Z, likelihood, Y):
         if isinstance(X, VariationalPosterior):
             uncertain_inputs = True
-            psi0 = kern.psi0(Z, X)
-            psi1 = kern.psi1(Z, X)
-            psi2 = kern.psi2(Z, X)
+            psi0_all = kern.psi0(Z, X)
+            psi1_all = kern.psi1(Z, X)
+            psi2_all = kern.psi2(Z, X)
         else:
             uncertain_inputs = False
-            psi0 = kern.Kdiag(X)
-            psi1 = kern.K(X, Z)
-            psi2 = None
+            psi0_all = kern.Kdiag(X)
+            psi1_all = kern.K(X, Z)
+            psi2_all = None
 
         Ys, traces = self._Y(Y)
         beta_all = 1./likelihood.variance