[Numpy-discussion] genfromtxt behaviour

Pierre GM pgmdevlist@gmail....
Fri Oct 29 08:06:33 CDT 2010


On Oct 29, 2010, at 2:59 PM, Matt Studley wrote:

> <snip>
> 
>>> How can I do my nice 2d slicing on the latter?
>>> 
>>> array([('a', 2, 3), ('b', 5, 6), ('c', 8, 9)],
>>>     dtype=[('f0', '|S1'), ('f1', '<i4'), ('f2', '<i4')])
> 
>> Select a column by its name:
>> yourarray['f0']
> 
> Super!
> 
> So I would need to get the dtype object...
> 
> myData[ myData.dtype.names[0] ]
> 
> in order to index by column.

For a structured array, yes, you get it.


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