29  

It controls whether the sample is returned to the sample pool. If you want only unique samples then this should be false.

它控制是否将样本返回到样本池。如果您只想要唯一的样本,那么这应该是假的。

15  

You can use it when you want sample some elements from a list, and meanwhile you want the elements no repeat, then you can set the "replace=False".
eg.

当您想要从列表中采样某些元素时,可以使用它,同时您希望元素不重复,然后您可以设置“replace = False”。例如。

from numpy import random as rd

ary = list(range(10))
# usage
In[18]: rd.choice(ary, size=8, replace=False)
Out[18]: array([0, 5, 9, 8, 2, 1, 6, 3])  # no repeated elements
In[19]: rd.choice(ary, size=8, replace=True)
Out[19]: array([4, 9, 8, 5, 4, 1, 1, 9])  # elements may be repeated