Mercurial > pylearn
comparison dataset.py @ 45:a5c70dc42972
Test functions for dataset.py
| author | bengioy@grenat.iro.umontreal.ca |
|---|---|
| date | Tue, 29 Apr 2008 11:25:36 -0400 |
| parents | 5a85fda9b19b |
| children | c5b07e87b0cb |
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| 44:5a85fda9b19b | 45:a5c70dc42972 |
|---|---|
| 2 from lookup_list import LookupList | 2 from lookup_list import LookupList |
| 3 Example = LookupList | 3 Example = LookupList |
| 4 from misc import unique_elements_list_intersection | 4 from misc import unique_elements_list_intersection |
| 5 from string import join | 5 from string import join |
| 6 from sys import maxint | 6 from sys import maxint |
| 7 import numpy | |
| 7 | 8 |
| 8 class AbstractFunction (Exception): """Derived class must override this function""" | 9 class AbstractFunction (Exception): """Derived class must override this function""" |
| 9 class NotImplementedYet (NotImplementedError): """Work in progress, this should eventually be implemented""" | 10 class NotImplementedYet (NotImplementedError): """Work in progress, this should eventually be implemented""" |
| 10 #class UnboundedDataSet (Exception): """Trying to obtain length of unbounded dataset (a stream)""" | 11 #class UnboundedDataSet (Exception): """Trying to obtain length of unbounded dataset (a stream)""" |
| 11 | 12 |
| 374 # or a list of indices | 375 # or a list of indices |
| 375 elif type(i) is list: | 376 elif type(i) is list: |
| 376 rows = i | 377 rows = i |
| 377 if rows is not None: | 378 if rows is not None: |
| 378 fields_values = zip(*[self[row] for row in rows]) | 379 fields_values = zip(*[self[row] for row in rows]) |
| 379 return DataSet.MinibatchDataSet( | 380 return MinibatchDataSet( |
| 380 Example(self.fieldNames(),[ self.valuesVStack(fieldname,field_values) | 381 Example(self.fieldNames(),[ self.valuesVStack(fieldname,field_values) |
| 381 for fieldname,field_values | 382 for fieldname,field_values |
| 382 in zip(self.fieldNames(),fields_values)])) | 383 in zip(self.fieldNames(),fields_values)])) |
| 383 # else check for a fieldname | 384 # else check for a fieldname |
| 384 if self.hasFields(i): | 385 if self.hasFields(i): |