# HG changeset patch
# User Pascal Lamblin <lamblinp@iro.umontreal.ca>
# Date 1296078944 18000
# Node ID f9e4d71aa353a785cb4cb928e3628c86d4d075c3
# Parent  89017617ab36b027f2728cae75d26150c6984bc1
Add L1 and L2² costs to sigmoidal layer

diff -r 89017617ab36 -r f9e4d71aa353 pylearn/shared/layers/sigmoidal_layer.py
--- a/pylearn/shared/layers/sigmoidal_layer.py	Mon Jan 24 13:18:43 2011 -0500
+++ b/pylearn/shared/layers/sigmoidal_layer.py	Wed Jan 26 16:55:44 2011 -0500
@@ -20,6 +20,8 @@
         :param squash: an squashing function
         """
         output = squash_fn(tensor.dot(input, w) + b)
+        l1 = abs(w).sum()
+        l2_sqr = (w**2).sum()
         update_locals(self, locals())
 
     @classmethod