[Numpy-discussion] How do I test if an array contains NaN ?
Robert Kern
robert.kern at gmail.com
Thu Jan 4 17:19:32 CST 2007
Sebastian Haase wrote:
> Hi!
>
> Simple question:
> How do I test if an array contains NaN ?
> Or others like inf ...?
In [1633]: isinf?
Type: ufunc
Base Class: <type 'numpy.ufunc'>
Namespace: Interactive
Docstring:
y = isinf(x) returns True where x is +inf or -inf
In [1634]: isnan?
Type: ufunc
Base Class: <type 'numpy.ufunc'>
Namespace: Interactive
Docstring:
y = isnan(x) returns True where x is Not-A-Number
In [1635]: isfinite?
Type: ufunc
Base Class: <type 'numpy.ufunc'>
Namespace: Interactive
Docstring:
y = isfinite(x) returns True where x is finite
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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