ignoring NAs in a dataset with numpy

mrafi confessin at gmail.com
Tue Oct 28 09:08:04 CET 2008


Hey All,
I am working with numpy 
I have a data set with a lot of nan values, and i want to calculate standard
deviation
is there a direct function to do it for example nansum(or something like
this),
to calculate standard deviation ignoring nan values??
Thanks
Rafi
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