[Numpy-discussion] Consistency of random number functions APIs.

2021-10-30 Thread Todd Anderson
Some NumPy random number generation functions take a dtype parameter whereas 
others don't.  Some of them take an out parameter whereas others don't.  Just 
glancing at it, there seems to be no rhyme or reason why this would be the case 
but is there some hidden consistency underneath the hood to explain why some 
have these params and others don't?  Is there any reason that things like 
random.randn and numpy.random.Generator.normal don't take a dtype and out 
parameters?  If I need to create a huge array of random numbers whose dtype is 
float16 or float32 then what is the BKM to do this when the routine I would 
like to use generates an array of float64 and with the 64-bit data type the 
array won't fit in memory?
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[Numpy-discussion] argmin/argmax underspecification?

2022-06-16 Thread TODD ANDERSON
The docs say "Returns the indices of the maximum values along an axis."  When 
axis=None, I presume the implementation is actually "Returns the first index 
(assuming ravel ordering) of the maximum value."  I also presume that people 
are now relying on the fact that it always returns the first such index.  So, 
maybe the docs should be updated?
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