Mercurial > pylearn

comparison dataset.py @ 317:14081904d8f3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
doc updated regarding __getitem__ returning LookupList and .subset returning a DataSet
author Thierry Bertin-Mahieux <bertinmt@iro.umontreal.ca>
date Wed, 11 Jun 2008 16:40:47 -0400
parents 5fe6d0c93109
children e2eab74b6a28
comparison
equal deleted inserted replaced
316:5fe6d0c93109 317:14081904d8f3
97 97
98 Dataset elements can be indexed and sub-datasets (with a subset 98 Dataset elements can be indexed and sub-datasets (with a subset
99 of examples) can be extracted. These operations are not supported 99 of examples) can be extracted. These operations are not supported
100 by default in the case of streams. 100 by default in the case of streams.
101 101
102 - dataset[:n] returns a dataset with the n first examples. 102 - dataset[:n] returns an Example with the n first examples.
103 103
104 - dataset[i1:i2:s] returns a dataset with the examples i1,i1+s,...i2-s. 104 - dataset[i1:i2:s] returns an Example with the examples i1,i1+s,...i2-s.
105 105
106 - dataset[i] returns an Example. 106 - dataset[i] returns an Example.
107 107
108 - dataset[[i1,i2,...in]] returns a dataset with examples i1,i2,...in. 108 - dataset[[i1,i2,...in]] returns a. Example with examples i1,i2,...in.
109
110 A similar command gives you a DataSet instead of Examples :
111
112 - dataset.subset[:n] returns a DataSet with the n first examples.
113
114 - dataset.subset[i1:i2:s] returns a DataSet with the examples i1,i1+s,...i2-s.
115
116 - dataset.subset[i] returns a DataSet.
117
118 - dataset.subset[[i1,i2,...in]] returns a DataSet with examples i1,i2,...in.
119
109 120
110 - dataset.<property> returns the value of a property associated with 121 - dataset.<property> returns the value of a property associated with
111 the name <property>. The following properties should be supported: 122 the name <property>. The following properties should be supported:
112 - 'description': a textual description or name for the dataset 123 - 'description': a textual description or name for the dataset
113 - 'fieldtypes': a list of types (one per field) 124 - 'fieldtypes': a list of types (one per field)