From 671ae41256574a99211917cefc98084f2cfd5d95 Mon Sep 17 00:00:00 2001
From: Nicolo Fusi <nicolo.fusi@gmail.com>
Date: Mon, 15 Apr 2013 16:02:02 +0100
Subject: [PATCH] small changes

---
 GPy/inference/SGD.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/GPy/inference/SGD.py b/GPy/inference/SGD.py
index 5d1b673d..be1c92de 100644
--- a/GPy/inference/SGD.py
+++ b/GPy/inference/SGD.py
@@ -230,6 +230,8 @@ class opt_SGD(Optimizer):
                     shapes = self.get_param_shapes(N, Q)
                     f, step, Nj = self.step_with_missing_data(f_fp, X, step, shapes)
                 else:
+                    self.model.likelihood.YYT = np.dot(self.model.likelihood.Y, self.model.likelihood.Y.T)
+                    self.model.likelihood.trYYT = np.trace(self.model.likelihood.YYT)
                     Nj = N
                     f, fp = f_fp(self.x_opt)
                     step = self.momentum * step + self.learning_rate * fp