[Numpy-discussion] numpy.fromfunction() doesn't work as expected?

Cheng Li scrappedprince.li@gmail....
Thu Jul 19 05:52:02 CDT 2012

Hi All,


I have spot a strange behavior of numpy.fromfunction(). The sample codes are
as follows:

>>>  import numpy as np

>>>  def myOnes(i,j):

             return 1.0

>>>  a = np.fromfunction(myOnes,(2000,2000))

>>>  a



Actually what I expected is that the function will return a 2000*2000 2d
array with unit value. The returned single float value really confused me.
Is this a known bug? The numpy version I used is 1.6.1.




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