numpy-discussion

[Numpy-discussion] user-defined type example

[Matt K. <mat...@ho...>]

Could someone please point me to/provide me with a basic example of creatin=
g a user defined type?
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Here is my completely naive attempt which obviously doesn't work...import n=
umpy
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class myType(numpy.void):    def __init__(self,val):        self.val =3D va=
l
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testType =3D numpy.dtype(myType)
val1 =3D myType(5)val2 =3D myType(6)
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foo =3D numpy.array([val1,val2],testType)
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Any help would be greatly appreciated. Thanks,
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- Matt Knox
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Re: [Numpy-discussion] ***[Possible UCE]*** user-defined type example

[Travis O. <oli...@ie...>]

Matt Knox wrote:
> Could someone please point me to/provide me with a basic example of 
> creating a user defined type?
>  
> Here is my completely naive attempt which obviously doesn't work...
>
> import numpy
>  
> class myType(numpy.void):
>     def __init__(self,val):
>         self.val = val
>  
> testType = numpy.dtype(myType)
>
> val1 = myType(5)
> val2 = myType(6)
>  
> foo = numpy.array([val1,val2],testType)
>  
>  
> Any help would be greatly appreciated. Thanks,
>  

A "true" user-defined data-type can only be done in C.

However.  You can use the "VOID" data-type to create a type with 
multiple fields.   What do you want to do with your user-defined data-type.

-Travis