[Numpy-discussion] Question about recarray
oliphant.travis at ieee.org
Thu Sep 21 11:43:44 CDT 2006
Lionel Roubeyrie wrote:
> Hi all,
> Is it possible to put masked values into recarrays, I need a array with
> heterogenous types of datas (datetime objects in the first col, all others
> are float) but with missing values in some records. For the moment, I don't
> find any solution for that.
Either use "nans" or "inf" for missing values or use the masked array
object with a complex data-type. You don't need to use a recarray
object to get "records". Any array can have "records". Therefore, you
can have a masked array of "records" by creating an array with the
It may also be possible to use a recarray as the "array" for the masked
array object becuase the recarray is a sub-class of the array.
> I have tried with arrays of dtype=object, but I
> have problem when I want to compute min, max, ... with an error like:
> TypeError: function not supported for these types, and can't coerce safely to
> supported types.
It looks like the max and min functions are not supported for Object
import numpy as N
does not include Object arrays.
It probably should.
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