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Changed the behaviour of checkgrad.

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verbose now works as (I) expected. discussion welcome
This commit is contained in:
James Hensman 2012-12-21 11:41:08 +00:00
parent e0384902ff
commit dfdd47a0a2
1 changed files with 3 additions and 3 deletions
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6
GPy/core/model.py
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@ -286,7 +286,7 @@ class model(parameterised):
return '\n'.join(s) return '\n'.join(s)
def checkgrad(self, verbose = True, include_priors=False, step=1e-6, tolerance = 1e-3, *args): def checkgrad(self, verbose=False, include_priors=False, step=1e-6, tolerance = 1e-3, *args):
""" """
Check the gradient of the model by comparing to a numerical estimate. Check the gradient of the model by comparing to a numerical estimate.
If the overall gradient fails, invividual components are tested. If the overall gradient fails, invividual components are tested.
@ -313,12 +313,12 @@ class model(parameterised):
print " Gradient ratio = ", ratio, '\n' print " Gradient ratio = ", ratio, '\n'
sys.stdout.flush() sys.stdout.flush()
if not (np.abs(1.-ratio)>tolerance): if (np.abs(1.-ratio)<tolerance) and not np.isnan(ratio):
if verbose: if verbose:
print 'Gradcheck passed' print 'Gradcheck passed'
else: else:
if verbose: if verbose:
print "Global ratio far from unity. Testing individual gradients\n" print "Global check failed. Testing individual gradients\n"
try: try:
names = self.extract_param_names() names = self.extract_param_names()
except NotImplementedError: except NotImplementedError: