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Added automatic computation of dKdiag_dtheta in kernpart.py using dK_dtheta.

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This commit is contained in:
Neil Lawrence 2013-08-17 07:13:51 +01:00
parent bba3dc5458
commit a570198029
3 changed files with 33 additions and 19 deletions
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6
GPy/kern/parts/kernpart.py
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@ -29,7 +29,11 @@ class Kernpart(object):
def dK_dtheta(self,dL_dK,X,X2,target):
raise NotImplementedError
def dKdiag_dtheta(self,dL_dKdiag,X,target):
raise NotImplementedError
# In the base case compute this by calling dK_dtheta. Need to
# override for stationary covariances (for example) to save
# time.
for i in range(X.shape[0]):
self.dK_dtheta(dL_dKdiag[i], X[i, :][None, :], X2=None, target=target)
def psi0(self,Z,mu,S,target):
raise NotImplementedError
def dpsi0_dtheta(self,dL_dpsi0,Z,mu,S,target):