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modified kernel tests for gradients_XX

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alessandratosi 2016-04-21 12:09:39 +01:00
parent a1e4728f8a
commit bbd8264235
1 changed files with 5 additions and 8 deletions
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13
GPy/testing/kernel_tests.py
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@ -105,14 +105,14 @@ class Kern_check_d2K_dXdX(Kern_check_model):
"""This class allows gradient checks for the secondderivative of a kernel with respect to X. """
def __init__(self, kernel=None, dL_dK=None, X=None, X2=None):
Kern_check_model.__init__(self,kernel=kernel,dL_dK=dL_dK, X=X, X2=X2)
self.X = Param('X',X)
self.link_parameter(self.X)
#self.X = Param('X',X)
#self.link_parameter(self.X)
def log_likelihood(self):
return np.sum(self.kernel.gradients_X(self.dL_dK,self.X, self.X2))
def parameters_changed(self):
self.X.gradient[:] = self.kernel.gradients_XX(self.dL_dK, self.X, self.X2,cov=True).sum(0).sum(1)
self.X.gradient[:] = self.kernel.gradients_XX(self.dL_dK, self.X, self.X2)
# class Kern_check_d2Kdiag_dXdX(Kern_check_model):
# """This class allows gradient checks for the secondderivative of a kernel diagonal with respect to X. """
@ -263,7 +263,7 @@ def check_kernel_gradient_functions(kern, X=None, X2=None, output_ind=None, verb
except NotImplementedError:
result=True
if verbose:
print(("gradients_XX not implemented for " + kern.name))
print(("gradients_X not implemented for " + kern.name))
if result and verbose:
print("Check passed.")
if not result:
@ -283,7 +283,7 @@ def check_kernel_gradient_functions(kern, X=None, X2=None, output_ind=None, verb
except NotImplementedError:
result=True
if verbose:
print(("gradients_XX not implemented for " + kern.name))
print(("gradients_X not implemented for " + kern.name))
if result and verbose:
print("Check passed.")
if not result:
@ -293,9 +293,6 @@ def check_kernel_gradient_functions(kern, X=None, X2=None, output_ind=None, verb
pass_checks = False
return False
# if verbose:
# print("Checking gradients of dKdiag(X, X) wrt X.")
return pass_checks