# HG changeset patch
# User Frederic Bastien <bastienf@iro.umontreal.ca>
# Date 1210009059 14400
# Node ID 7b1f3ad3d60b7f0659462e158fc39d022f957989
# Parent  aa9e786ee849e421c29dce429d25d3db50230879
bugfix

diff -r aa9e786ee849 -r 7b1f3ad3d60b dataset.py
--- a/dataset.py	Mon May 05 11:49:40 2008 -0400
+++ b/dataset.py	Mon May 05 13:37:39 2008 -0400
@@ -610,7 +610,7 @@
     
 class MinibatchDataSet(DataSet):
     """
-    Turn a LookupList of same-length fields into an example-iterable dataset.
+    Turn a LookupList of same-length (iterable) fields into an example-iterable dataset.
     Each element of the lookup-list should be an iterable and sliceable, all of the same length.
     """
     def __init__(self,fields_lookuplist,values_vstack=DataSet().valuesVStack,
@@ -636,9 +636,7 @@
             return DataSetFields(MinibatchDataSet(
                 Example(self._fields.keys(),[field[i] for field in self._fields])),self.fieldNames())
         if type(i) is int:
-            return DataSetFields(MinibatchDataSet(
-                Example(self._fields.keys(),[[field[i]] for field in self._fields])),self.fieldNames())
-
+            return Example(self._fields.keys(),[field[i] for field in self._fields])
         if self.hasFields(i):
             return self._fields[i]
         assert i in self.__dict__ # else it means we are trying to access a non-existing property