Re: [Numpy-discussion] dtype field renaming

[Pierre GM]

On Apr 8, 2009, at 5:57 PM, Elaine Angelino wrote:

 hi there --

 for a numpy.recarray, is it possible to rename the fields in the  
 dtype?

Take a new view:
  a = np.array([(1,1)],dtype=[('a',int),('b',int)])
  b = a.view([(A,int), ('b', int)])

or:

use numpy.lib.recfunctions.rename_fields
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Re: [Numpy-discussion] dtype field renaming

[Stéfan van der Walt]

2009/4/9 Pierre GM pgmdevl...@gmail.com:
 for a numpy.recarray, is it possible to rename the fields in the
 dtype?

 Take a new view:
   a = np.array([(1,1)],dtype=[('a',int),('b',int)])
   b = a.view([(A,int), ('b', int)])

 or:

 use numpy.lib.recfunctions.rename_fields

Or change the names tuple:

a.dtype.names = ('c', 'd')

Stéfan
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Re: [Numpy-discussion] dtype field renaming

[Pierre GM]

On Apr 8, 2009, at 6:18 PM, Stéfan van der Walt wrote:

 2009/4/9 Pierre GM pgmdevl...@gmail.com:
 for a numpy.recarray, is it possible to rename the fields in the
 dtype?

 Take a new view:
   a = np.array([(1,1)],dtype=[('a',int),('b',int)])
   b = a.view([(A,int), ('b', int)])

 or:

 use numpy.lib.recfunctions.rename_fields

 Or change the names tuple:

 a.dtype.names = ('c', 'd')

Now that's wicked neat trick ! I love it ! Faster than taking a view  
for sure.
Note that rename_fields should work also w/ nested fields (not that  
common, true).
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