July 16, 2008
1:38 p.m.
Hi all, I am busy documenting `histogram`, and the definition of a "bin" eludes me. Here is the behaviour that troubles me:
np.histogram([1,2,1], bins=[0, 1, 2, 3], new=True) (array([0, 2, 1]), array([0, 1, 2, 3]))
From this result, it seems as if a bin is defined as the half-open interval [right_edge, left_edge).
Now, looks what happens in the following case:
np.histogram([1,2,3], bins=[0,1,2,3], new=True) (array([0, 1, 2]), array([0, 1, 2, 3]))
Here, the last bin is defined by the closed interval [right_edge, left_edge]! Is this a bug, or a design consideration? Regards Stéfan