Mercurial > pylearn

changeset 43:e92244f30116

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Corrected iterator logic errors
author bengioy@grenat.iro.umontreal.ca
date Mon, 28 Apr 2008 11:41:28 -0400
parents 9b68774fcc6b
children 5a85fda9b19b
files dataset.py
diffstat 1 files changed, 3 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/dataset.py	Fri Apr 25 16:00:31 2008 -0400
+++ b/dataset.py	Mon Apr 28 11:41:28 2008 -0400
@@ -197,7 +197,7 @@
             return self.next_row
 
         def next(self):
-            if self.n_batches and self.n_batches_done==self.n_batches
+            if self.n_batches and self.n_batches_done==self.n_batches:
                 raise StopIteration
             upper = self.next_row+self.minibatch_size
             if upper <=self.L:
@@ -214,7 +214,7 @@
                                      for name in self.fieldnames])
             self.next_row=upper
             self.n_batches_done+=1
-            if upper >= self.L:
+            if upper >= self.L and self.n_batches:
                 self.next_row -= self.L
             return minibatch
 
@@ -900,6 +900,7 @@
             def next(self):
                 sub_data =  self.dataset.data[self.current:self.current+self.minibatch_size]
                 self._values = [sub_data[:,self.dataset.fields_columns[f]] for f in self._names]
+                self.current+=self.minibatch_size
                 return self
 
         return Iterator(self,fieldnames,minibatch_size,n_batches,offset)