[Numpy-discussion] nan functions convert matrix to array
Keith Goodman
kwgoodman at gmail.com
Fri Dec 1 15:46:39 CST 2006
The first line of the nan functions (such as nansum, nanmin, nanmax) is
y = array(a)
That leads to matrix in, array out.
Is there some way to make it matrix in, matrix out?
Here, for example, is nansum:
def nansum(a, axis=None):
"""Sum the array over the given axis, treating NaNs as 0.
"""
y = array(a)
if not issubclass(y.dtype.type, _nx.integer):
y[isnan(a)] = 0
return y.sum(axis)
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