Added new utility function 'split'

tensor.py

@@ -1358,6 +1358,10 @@ class SetSubtensor(Subtensor):
         x.__setitem__(cdata, y)
         out[0] = x
 
+def split(x, splits_size, n_splits, axis=0):
+    the_split = Split(n_splits)
+    return the_split(x, axis, splits_size)
+
 class Split(Op):
     """Partition a `TensorResult` along some axis.
 
@@ -1366,9 +1370,9 @@ class Split(Op):
         x = vector()
         splits = lvector()
         # you have to declare right away how many split_points there will be.
-        ra, rb, rc = split(x, axis=0, points=splits, n_splits=3)  
+        ra, rb, rc = split(x, splits, n_splits = 3, axis = 0)  
 
-        f = compile([x, splits], [ra, rb, rc])
+        f = function([x, splits], [ra, rb, rc])
 
         a, b, c = f([0,1,2,3,4,5,6], [3, 2, 1])