zoeygxy commented on a change in pull request #15346: numpy_split support param
type fix; numpy_vsplit added
URL: https://github.com/apache/incubator-mxnet/pull/15346#discussion_r302902846
##########
File path: python/mxnet/numpy/multiarray.py
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@@ -1835,6 +1835,83 @@ def split(ary, indices_or_sections, axis=0):
return _mx_nd_np.split(ary, indices_or_sections, axis=axis)
+@set_module('mxnet.numpy')
+def vsplit(ary, indices_or_sections):
+ r"""
+ vsplit(ary, indices_or_sections)
+
+ Split an array into multiple sub-arrays vertically (row-wise).
+
+ ``vsplit`` is equivalent to ``split`` with `axis=0` (default): the array
is always split
+ along the first axis regardless of the array dimension.
+
+ Parameters
+ ----------
+ ary : ndarray
+ Array to be divided into sub-arrays.
+ indices_or_sections : int or 1 - D Python tuple, list or set.
+ If `indices_or_sections` is an integer, N, the array will be divided
into N equal arrays
+ along axis 0. If such a split is not possible, an error is raised.
+
+ If `indices_or_sections` is a 1-D array of sorted integers, the
entries indicate where
+ along axis 0 the array is split. For example, ``[2, 3]`` would result
in
+
+ - ary[:2]
+ - ary[2:3]
+ - ary[3:]
+
+ If an index exceeds the dimension of the array along axis 0, an error
will be thrown.
+
+ Returns
+ -------
+ sub-arrays : list of ndarrays
+ A list of sub-arrays.
+
+ See Also
+ --------
+ split : Split an array into multiple sub-arrays of equal size.
+
+ Notes
+ -------
+ This function differs from the original `numpy.degrees
+
<https://docs.scipy.org/doc/numpy/reference/generated/numpy.degrees.html>`_ in
+ the following aspects:
+
+ - Currently parameter ``indices_or_sections`` does not support ndarray,
but supports scalar,
+ tuple
Review comment:
Good catch! Fixed.
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