[Numpy-discussion] What is the logical value of nan?
Pauli Virtanen
pav@iki...
Tue Mar 10 16:09:45 CDT 2009
Tue, 10 Mar 2009 13:08:17 -0600, Charles R Harris wrote:
> It isn't 0 so it should be True. Any disagreement?
+1
Nonzero Python object, hence True. Moreover, it's also True in Python:
>>> import numpy as np
>>> type(np.nan)
<type 'float'>
>>> bool(np.nan)
True
IMHO, we should follow Python here, otherwise unnecessary confusion may
arise.
--
Pauli Virtanen
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