Mercurial > pylearn

comparison dataset.py @ 85:7b1f3ad3d60b

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bugfix
author Frederic Bastien <bastienf@iro.umontreal.ca>
date Mon, 05 May 2008 13:37:39 -0400
parents c0f211213a58
children 6749d18e11c8
comparison
equal deleted inserted replaced
84:aa9e786ee849 85:7b1f3ad3d60b
608 return (self.examples() | other.examples()).fields() 608 return (self.examples() | other.examples()).fields()
609 609
610 610
611 class MinibatchDataSet(DataSet): 611 class MinibatchDataSet(DataSet):
612 """ 612 """
613 Turn a LookupList of same-length fields into an example-iterable dataset. 613 Turn a LookupList of same-length (iterable) fields into an example-iterable dataset.
614 Each element of the lookup-list should be an iterable and sliceable, all of the same length. 614 Each element of the lookup-list should be an iterable and sliceable, all of the same length.
615 """ 615 """
616 def __init__(self,fields_lookuplist,values_vstack=DataSet().valuesVStack, 616 def __init__(self,fields_lookuplist,values_vstack=DataSet().valuesVStack,
617 values_hstack=DataSet().valuesHStack): 617 values_hstack=DataSet().valuesHStack):
618 """ 618 """
634 def __getitem__(self,i): 634 def __getitem__(self,i):
635 if type(i) in (slice,list): 635 if type(i) in (slice,list):
636 return DataSetFields(MinibatchDataSet( 636 return DataSetFields(MinibatchDataSet(
637 Example(self._fields.keys(),[field[i] for field in self._fields])),self.fieldNames()) 637 Example(self._fields.keys(),[field[i] for field in self._fields])),self.fieldNames())
638 if type(i) is int: 638 if type(i) is int:
639 return DataSetFields(MinibatchDataSet( 639 return Example(self._fields.keys(),[field[i] for field in self._fields])
640 Example(self._fields.keys(),[[field[i]] for field in self._fields])),self.fieldNames())
641
642 if self.hasFields(i): 640 if self.hasFields(i):
643 return self._fields[i] 641 return self._fields[i]
644 assert i in self.__dict__ # else it means we are trying to access a non-existing property 642 assert i in self.__dict__ # else it means we are trying to access a non-existing property
645 return self.__dict__[i] 643 return self.__dict__[i]
646 644