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fiddling with plotting

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This commit is contained in:
James Hensman 2014-02-05 17:12:52 +00:00
parent 432d9668a6
commit 80629e00b6
5 changed files with 20 additions and 13 deletions
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16
GPy/inference/latent_function_inference/posterior.py
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@ -74,7 +74,7 @@ class Posterior(object):
@property
def mean(self):
if self._mean is None:
self._mean = np.dot(self._K, self._woodbury_vector)
self._mean = np.dot(self._K, self.woodbury_vector)
return self._mean
@property
@ -93,10 +93,14 @@ class Posterior(object):
@property
def woodbury_chol(self):
if self._woodbury_chol is None:
B = self._K - self._covariance
tmp, _ = dpotrs(self._K_chol, B)
Wi, _ = dpotrs(self._K_chol, tmp.T)
_, _, self._woodbury_chol, _ = pdinv(Wi)
#try computing woodbury chol from cov
if self._woodbury_inv is not None:
_, _, self._woodbury_chol, _ = pdinv(self._woodbury_inv)
elif self._covariance is not None:
B = self._K - self._covariance
tmp, _ = dpotrs(self.K_chol, B)
self._woodbury_inv, _ = dpotrs(self.K_chol, tmp.T)
_, _, self._woodbury_chol, _ = pdinv(self._woodbury_inv)
return self._woodbury_chol
@property
@ -109,7 +113,7 @@ class Posterior(object):
@property
def woodbury_vector(self):
if self._woodbury_vector is None:
self._woodbury_vector, _ = dpotrs(self._K_chol, self.mean)
self._woodbury_vector, _ = dpotrs(self.K_chol, self.mean)
return self._woodbury_vector
@property