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Dont call parameters_changed ever yourself anymore and parameters are now inplace once in memory

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Max Zwiessele 2014-03-04 17:32:46 +00:00
parent 56d749ded8
commit 0df263956f
21 changed files with 601 additions and 284 deletions
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4
GPy/core/parameterization/transformations.py
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@ -10,7 +10,7 @@ import sys
#_lim_val = -np.log(sys.float_info.epsilon)
_exp_lim_val = np.finfo(np.float64).max
_lim_val = np.log(_exp_lim_val)#
_lim_val = np.log(_exp_lim_val)
#===============================================================================
# Fixing constants
@ -57,7 +57,7 @@ class Logexp(Transformation):
return np.where(x>_lim_val, x, np.log(1. + np.exp(np.clip(x, -_lim_val, _lim_val))))
#raises overflow warning: return np.where(x>_lim_val, x, np.log(1. + np.exp(x)))
def finv(self, f):
return np.where(f>_lim_val, f, np.log(np.exp(f) - 1.))
return np.where(f>_lim_val, f, np.log(np.exp(f+1e-20) - 1.))
def gradfactor(self, f):
return np.where(f>_lim_val, 1., 1 - np.exp(-f))
def initialize(self, f):