On Thu, Jul 14, 2011 at 4:09 AM, Marcin Wlodarczak <
mwlodarc...@uni-bielefeld.de> wrote:
>
> Hi,
>
> I was wondering whether it is possible to mask specific entries in a
> structured array. If I try to do the following:
>
> x = ma.masked_array([(2, 1.), (8, 2.)], dtype=[('a',int), ('b', float)])
> x_masked = ma.masked_equal(x, 2)
>
> I get "AttributeError: 'NotImplementedType' object has no attribute
> 'ndim'", which actually makes sense since x.shape returns (2,). I really
> can't think of any way around this problem.
>
>
It's not terribly satisfying, but you can iterate over the field names.
for field in x.dtype.names:
x[field] = np.ma.masked_equal(x[field],2)
-Chris Jordan-Squire
> Best regards,
> Marcin
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