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Changed all M's for num_inducing

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Alan Saul 2013-06-05 15:29:45 +01:00
parent aac4f6a237
commit 3475b52b6c
21 changed files with 142 additions and 142 deletions
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12
GPy/kern/kern.py
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@ -223,11 +223,11 @@ class kern(parameterised):
def dK_dtheta(self, dL_dK, X, X2=None):
"""
:param dL_dK: An array of dL_dK derivaties, dL_dK
:type dL_dK: Np.ndarray (N x M)
:type dL_dK: Np.ndarray (N x num_inducing)
:param X: Observed data inputs
:type X: np.ndarray (N x input_dim)
:param X2: Observed dara inputs (optional, defaults to X)
:type X2: np.ndarray (M x input_dim)
:type X2: np.ndarray (num_inducing x input_dim)
"""
assert X.shape[1] == self.input_dim
target = np.zeros(self.Nparam)
@ -300,16 +300,16 @@ class kern(parameterised):
return target
def dpsi1_dmuS(self, dL_dpsi1, Z, mu, S):
"""return shapes are N,M,input_dim"""
"""return shapes are N,num_inducing,input_dim"""
target_mu, target_S = np.zeros((2, mu.shape[0], mu.shape[1]))
[p.dpsi1_dmuS(dL_dpsi1, Z[:, i_s], mu[:, i_s], S[:, i_s], target_mu[:, i_s], target_S[:, i_s]) for p, i_s in zip(self.parts, self.input_slices)]
return target_mu, target_S
def psi2(self, Z, mu, S):
"""
:param Z: np.ndarray of inducing inputs (M x input_dim)
:param Z: np.ndarray of inducing inputs (num_inducing x input_dim)
:param mu, S: np.ndarrays of means and variances (each N x input_dim)
:returns psi2: np.ndarray (N,M,M)
:returns psi2: np.ndarray (N,num_inducing,num_inducing)
"""
target = np.zeros((mu.shape[0], Z.shape[0], Z.shape[0]))
[p.psi2(Z[:, i_s], mu[:, i_s], S[:, i_s], target) for p, i_s in zip(self.parts, self.input_slices)]
@ -328,7 +328,7 @@ class kern(parameterised):
prod = np.multiply(tmp1, tmp2)
crossterms += prod[:,:,None] + prod[:, None, :]
target += crossterms
return target