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dont print brackets in transformations

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This commit is contained in:
Max Zwiessele 2013-10-11 16:46:12 +01:00
parent 152f61acf0
commit 2355830398
1 changed files with 12 additions and 11 deletions
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23
GPy/core/transformations.py
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@ -41,20 +41,21 @@ class Logexp(Transformation):
print "Warning: changing parameters to satisfy constraints"
return np.abs(f)
def __str__(self):
return '(+ve)'
return '+ve'
class NegativeLogexp(Transformation):
domain = NEGATIVE
logexp = Logexp()
def f(self, x):
return -Logexp.f(x) # np.log(1. + np.exp(x))
return -self.logexp.f(x) # np.log(1. + np.exp(x))
def finv(self, f):
return Logexp.finv(-f) # np.log(np.exp(-f) - 1.)
return self.logexp.finv(-f) # np.log(np.exp(-f) - 1.)
def gradfactor(self, f):
return -Logexp.gradfactor(-f)
return -self.logexp.gradfactor(-f)
def initialize(self, f):
return -Logexp.initialize(f) # np.abs(f)
return -self.logexp.initialize(f) # np.abs(f)
def __str__(self):
return '(-ve)'
return '-ve'
class LogexpClipped(Logexp):
max_bound = 1e100
@ -91,7 +92,7 @@ class LogexpClipped(Logexp):
print "Warning: changing parameters to satisfy constraints"
return np.abs(f)
def __str__(self):
return '(+ve_c)'
return '+ve_c'
class Exponent(Transformation):
@ -108,7 +109,7 @@ class Exponent(Transformation):
print "Warning: changing parameters to satisfy constraints"
return np.abs(f)
def __str__(self):
return '(+ve)'
return '+ve'
class NegativeExponent(Exponent):
domain = NEGATIVE
@ -121,7 +122,7 @@ class NegativeExponent(Exponent):
def initialize(self, f):
return -Exponent.initialize(f) #np.abs(f)
def __str__(self):
return '(-ve)'
return '-ve'
class Square(Transformation):
domain = POSITIVE
@ -134,7 +135,7 @@ class Square(Transformation):
def initialize(self, f):
return np.abs(f)
def __str__(self):
return '(+sq)'
return '+sq'
class Logistic(Transformation):
domain = BOUNDED
@ -163,7 +164,7 @@ class Logistic(Transformation):
print "Warning: changing parameters to satisfy constraints"
return np.where(np.logical_or(f < self.lower, f > self.upper), self.f(f * 0.), f)
def __str__(self):
return '({},{})'.format(self.lower, self.upper)
return '{},{}'.format(self.lower, self.upper)