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weaved some rbf code

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James Hensman 2013-04-10 15:50:31 +01:00
parent eb1d8f211f
commit 4aca883df3
2 changed files with 54 additions and 5 deletions
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11
GPy/core/model.py
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@ -229,13 +229,18 @@ class model(parameterised):
Ensure that any variables which should clearly be positive have been constrained somehow.
"""
positive_strings = ['variance','lengthscale', 'precision']
param_names = self._get_param_names()
currently_constrained = self.all_constrained_indices()
to_make_positive = []
for s in positive_strings:
for i in self.grep_param_names(s):
if not (i in self.all_constrained_indices()):
name = self._get_param_names()[i]
self.constrain_positive(name)
if not (i in currently_constrained):
to_make_positive.append(param_names[i])
if warn:
print "Warning! constraining %s postive"%name
if len(to_make_positive):
self.constrain_positive('('+'|'.join(to_make_positive)+')')
def objective_function(self, x):