[Numpy-discussion] how to count Nan occurrence in a ndarray?

[Chao YUE]

Dear all,

I have an ndarray with dimension of 4X62500. is there anyway I can count the
number of missing value (NaN)? because I want to know how many observations
are missing?

Thanks for any idea,

Chao

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Chao YUE
Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL)
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