haojin2 commented on a change in pull request #16089: [Numpy] Random.choice
implemented
URL: https://github.com/apache/incubator-mxnet/pull/16089#discussion_r321555272
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File path: python/mxnet/numpy/random.py
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@@ -180,3 +180,60 @@ def multinomial(n, pvals, size=None, **kwargs):
array([32, 68])
"""
return _mx_nd_np.random.multinomial(n, pvals, size, **kwargs)
+
+
+def choice(a, size=None, replace=True, p=None, ctx=None, out=None):
+ """Generates a random sample from a given 1-D array
+
+ Parameters
+ -----------
+ a : 1-D array-like or int
+ If an ndarray, a random sample is generated from its elements.
+ If an int, the random sample is generated as if a were np.arange(a)
+ size : int or tuple of ints, optional
+ Output shape. If the given shape is, e.g., ``(m, n, k)``, then
+ ``m * n * k`` samples are drawn. Default is None, in which case a
+ single value is returned.
+ replace : boolean, optional
+ Whether the sample is with or without replacement
+ p : 1-D array-like, optional
+ The probabilities associated with each entry in a.
+ If not given the sample assumes a uniform distribution over all
+ entries in a.
+ ctx : Context, optional
+ Device context of output. Default is current context.
+ out : ``ndarray``, optional
Review comment:
What's the usage of `out` here? I think you can get rid of it here.
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