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removing unused link_functions

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Ricardo 2013-06-06 14:02:42 +01:00
parent adf2594677
commit feb7b04c51
1 changed files with 7 additions and 33 deletions
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40
GPy/likelihoods/link_functions.py
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@ -19,41 +19,15 @@ class LinkFunction(object):
def __init__(self):
pass
class Identity(LinkFunction):
def transf(self,mu):
return mu
def inv_transf(self,f):
return f
def log_inv_transf(self,f):
return np.log(f)
class Log(LinkFunction):
def transf(self,mu):
return np.log(mu)
def inv_transf(self,f):
return np.exp(f)
def log_inv_transf(self,f):
return f
class Log_ex_1(LinkFunction):
def transf(self,mu):
return np.log(np.exp(mu) - 1)
def inv_transf(self,f):
return np.log(np.exp(f)+1)
def log_inv_tranf(self,f):
return np.log(np.log(np.exp(f)+1))
class Probit(LinkFunction):
"""
Probit link function: Squashes a likelihood between 0 and 1
"""
def transf(self,mu):
pass
def inv_transf(self,f):
return std_norm_cdf(f)
pass
def log_inv_transf(self,f):
return np.log(std_norm_cdf(f))
pass