Mercurial > pylearn

comparison dataset.py @ 39:c682c6e9bf93

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Minor edits
author bengioy@esprit.iro.umontreal.ca
date Thu, 24 Apr 2008 14:46:10 -0400
parents d637ad8f7352
children 88fd1cce08b9
comparison
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38:d637ad8f7352 39:c682c6e9bf93
321 dataset[i] returns the (i+1)-th example of the dataset. 321 dataset[i] returns the (i+1)-th example of the dataset.
322 dataset[i:j] returns the subdataset with examples i,i+1,...,j-1. 322 dataset[i:j] returns the subdataset with examples i,i+1,...,j-1.
323 dataset[i:j:s] returns the subdataset with examples i,i+2,i+4...,j-2. 323 dataset[i:j:s] returns the subdataset with examples i,i+2,i+4...,j-2.
324 dataset[[i1,i2,..,in]] returns the subdataset with examples i1,i2,...,in. 324 dataset[[i1,i2,..,in]] returns the subdataset with examples i1,i2,...,in.
325 325
326 Note that some stream datasets may be unable to implement slicing/indexing 326 Note that some stream datasets may be unable to implement random access, i.e.
327 arbitrary slicing/indexing
327 because they can only iterate through examples one or a minibatch at a time 328 because they can only iterate through examples one or a minibatch at a time
328 and do not actually store or keep past (or future) examples. 329 and do not actually store or keep past (or future) examples.
329 """ 330 """
330 raise NotImplementedError() 331 raise NotImplementedError()
331 332