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Re: mask one array using another array

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  Re: mask one array using another array MRAB <python@mrabarnett.plus.com> - 2011-11-22 00:48 +0000

#16061 — Re: mask one array using another array

On 21/11/2011 21:42, questions anon wrote:
> I am trying to mask one array using another array.
>
> I have created a masked array using
> mask=MA.masked_equal(myarray,0),
> that looks something like:
> [1  -  -  1,
>   1  1  -  1,
>   1  1  1  1,
>   -   1  -  1]
>
> I have an array of values that I want to mask whereever my mask has a a '-'.
> how do I do this?
> I have looked at
> http://www.cawcr.gov.au/bmrc/climdyn/staff/lih/pubs/docs/masks.pdf but
> the command:
>
> d = array(a, mask=c.mask()
>
> results in this error:
> TypeError: 'numpy.ndarray' object is not callable
>
> I basically want to do exactly what that article does in that equation.
>
> Any feedback will be greatly appreciated.
>
The article is using the Numeric module, but your error says that you're 
using
the numpy module. They're not the same.

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