Mercurial > pylearn

comparison dataset.py @ 251:7e6edee187e3

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optimization of CachedDataSet__getitem__
author Frederic Bastien <bastienf@iro.umontreal.ca>
date Tue, 03 Jun 2008 12:25:53 -0400
parents c8f19a9eb10f
children 856d14dc4468
comparison
equal deleted inserted replaced
250:474be3d12c23 251:7e6edee187e3
1159 1159
1160 def __getitem__(self,i): 1160 def __getitem__(self,i):
1161 if type(i)==int and len(self.cached_examples)>i: 1161 if type(i)==int and len(self.cached_examples)>i:
1162 return self.cached_examples[i] 1162 return self.cached_examples[i]
1163 else: 1163 else:
1164 return DataSet.__getitem__(self,i) 1164 return self.source_dataset[i]
1165 1165
1166 class ApplyFunctionDataSet(DataSet): 1166 class ApplyFunctionDataSet(DataSet):
1167 """ 1167 """
1168 A L{DataSet} that contains as fields the results of applying a 1168 A L{DataSet} that contains as fields the results of applying a
1169 given function example-wise or minibatch-wise to all the fields of 1169 given function example-wise or minibatch-wise to all the fields of