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Ricardo 2013-06-05 12:36:09 +01:00
parent 99a517678c
commit da27491f4f
1 changed files with 3 additions and 3 deletions
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6
GPy/models/generalized_FITC.py
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@ -7,7 +7,7 @@ from ..util.linalg import mdot, jitchol, chol_inv, pdinv, trace_dot
from ..util.plot import gpplot from ..util.plot import gpplot
from .. import kern from .. import kern
from scipy import stats, linalg from scipy import stats, linalg
from ..core import sparse_GP from sparse_GP import sparse_GP
def backsub_both_sides(L,X): def backsub_both_sides(L,X):
""" Return L^-T * X * L^-1, assumuing X is symmetrical and L is lower cholesky""" """ Return L^-T * X * L^-1, assumuing X is symmetrical and L is lower cholesky"""
@ -36,12 +36,12 @@ class generalized_FITC(sparse_GP):
""" """
def __init__(self, X, likelihood, kernel, Z, X_variance=None, normalize_X=False): def __init__(self, X, likelihood, kernel, Z, X_variance=None, normalize_X=False):
self.Z = Z self.Z = Z
self.M = self.Z.shape[0] self.M = self.Z.shape[0]
self.true_precision = likelihood.precision self.true_precision = likelihood.precision
super(generalized_FITC, self).__init__(X, likelihood, kernel=kernel, Z=self.Z, X_variance=X_variance, normalize_X=normalize_X) sparse_GP.__init__(self, X, likelihood, kernel=kernel, Z=self.Z, X_variance=None, normalize_X=False)
self._set_params(self._get_params())
def _set_params(self, p): def _set_params(self, p):
self.Z = p[:self.M*self.Q].reshape(self.M, self.Q) self.Z = p[:self.M*self.Q].reshape(self.M, self.Q)