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[gradxx] not working with X,X...

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mzwiessele 2016-05-06 16:02:53 +01:00
parent b16d57f560
commit 17bfccb457
4 changed files with 41 additions and 23 deletions
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10
GPy/testing/kernel_tests.py
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@ -112,13 +112,15 @@ class Kern_check_d2K_dXdX_cov(Kern_check_model):
self.link_parameter(self.X)
def log_likelihood(self):
return np.sum(self.kernel.gradients_X(self.dL_dK,self.X, self.X2))
return self.kernel.gradients_X(self.dL_dK, self.X, self.X2).sum()
def parameters_changed(self):
#if self.kernel.name == 'rbf':
# import ipdb;ipdb.set_trace()
grads = self.kernel.gradients_XX(self.dL_dK, self.X, self.X2, cov=True)
self.X.gradient[:] = grads.sum(-1).sum(1)
# import ipdb;ipdb.set_trace()
if self.X2 is None: X2 = self.X
else: X2 = self.X2
grads = self.kernel.gradients_XX(self.dL_dK.T, X2, self.X, cov=True)
self.X.gradient[:] = grads.sum(-1).sum(0)
class Kern_check_d2Kdiag_dXdX_cov(Kern_check_model):
"""This class allows gradient checks for the second derivative of a kernel with respect to X. """