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yanchuan sim committed 6833957

added __iadd__ for bow

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Files changed (1)

ycutils/bagofwords.py

 
     return self.dot_product(other)
   #end def
+  
+  def __iadd__(self, other):
+    """Adds two :class:`BOW` in place.
+
+    :param other: the other BOW object to add."""
+    
+    for w, c in other.iteritems(): self[w] += c
+
+    return self
+  #end def
 
   def add_tokens(self, tokens):
     """Adds a list of tokenized words to the bag of words collections.
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