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Added tests and fixed some naming

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Alan Saul 2013-09-11 12:06:36 +01:00
parent 64e65b846d
commit cf9ea23aef
2 changed files with 86 additions and 2 deletions
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4
GPy/likelihoods/likelihood_functions.py
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@ -507,7 +507,7 @@ class Gaussian(LikelihoodFunction):
d3lik_d3f = np.diagonal(0*self.I)[:, None] # FIXME: CAREFUL THIS MAY NOT WORK WITH MULTIDIMENSIONS?
return d3lik_d3f
def lik_dvar(self, y, f, extra_data=None):
def dlik_dvar(self, y, f, extra_data=None):
"""
Gradient of the likelihood (lik) w.r.t sigma parameter (standard deviation)
"""
@ -538,7 +538,7 @@ class Gaussian(LikelihoodFunction):
def _gradients(self, y, f, extra_data=None):
#must be listed in same order as 'get_param_names'
derivs = ([self.lik_dvar(y, f, extra_data=extra_data)],
derivs = ([self.dlik_dvar(y, f, extra_data=extra_data)],
[self.dlik_df_dvar(y, f, extra_data=extra_data)],
[self.d2lik_d2f_dvar(y, f, extra_data=extra_data)]
) # lists as we might learn many parameters