Mercurial > pylearn
comparison dataset.py @ 124:9c4f522526bf
Automated merge with ssh://p-omega1@lgcm.iro.umontreal.ca/tlearn
| author | Frederic Bastien <bastienf@iro.umontreal.ca> |
|---|---|
| date | Wed, 07 May 2008 16:20:40 -0400 |
| parents | 8b520423d4ee |
| children | 7d8b3d6dd4e9 |
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| 121:2ca8dccba270 | 124:9c4f522526bf |
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| 353 len(dataset) returns the number of examples in the dataset. | 353 len(dataset) returns the number of examples in the dataset. |
| 354 By default, a DataSet is a 'stream', i.e. it has an unbounded length (sys.maxint). | 354 By default, a DataSet is a 'stream', i.e. it has an unbounded length (sys.maxint). |
| 355 Sub-classes which implement finite-length datasets should redefine this method. | 355 Sub-classes which implement finite-length datasets should redefine this method. |
| 356 Some methods only make sense for finite-length datasets. | 356 Some methods only make sense for finite-length datasets. |
| 357 """ | 357 """ |
| 358 return sys.maxint | 358 return maxint |
| 359 | 359 |
| 360 def is_unbounded(self): | 360 def is_unbounded(self): |
| 361 """ | 361 """ |
| 362 Tests whether a dataset is unbounded (e.g. a stream). | 362 Tests whether a dataset is unbounded (e.g. a stream). |
| 363 """ | 363 """ |
| 364 return len(self)==sys.maxint | 364 return len(self)==maxint |
| 365 | 365 |
| 366 def hasFields(self,*fieldnames): | 366 def hasFields(self,*fieldnames): |
| 367 """ | 367 """ |
| 368 Return true if the given field name (or field names, if multiple arguments are | 368 Return true if the given field name (or field names, if multiple arguments are |
| 369 given) is recognized by the DataSet (i.e. can be used as a field name in one | 369 given) is recognized by the DataSet (i.e. can be used as a field name in one |