[Numpy-discussion] Does numpy.bincount support numpy.float128 type weights?

Wei, Huayi weihuayi at xtu.edu.cn
Wed Nov 30 16:54:16 EST 2016

Hi, There,

Here is a sample code using `numpy.bincount`

     import numpy as np
     a = np.array([1.0, 2.0, 3.0], dtype=np.float128)
     b = np.array([1, 2, 0], dtype=np.int)
     c = np.bincount(b, weights=a)

If run it, I get the following error report:

     ----> 1 c = np.bincount(b, weights=a)
     TypeError: Cannot cast array data from dtype('float128') to 
dtype('float64') according to the rule 'safe'

Is it a bug of `np.bincount`? Does there exist any similar function 
which I can use to do the similar thing with numpy.float128 type weights?



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