[Numpy-discussion] Fancy indexing question:
Ravi
lists_ravi@lavabit....
Tue Feb 24 14:26:39 CST 2009
On Tuesday 24 February 2009 14:39:39 Christopher Barker wrote:
> I'm having a bit of trouble getting fancy indexing to do what I want.
Use ix_:
In [2]: a
Out[2]:
array([[ 0, 1, 2, 3],
[ 4, 5, 6, 7],
[ 8, 9, 10, 11],
[12, 13, 14, 15],
[16, 17, 18, 19],
[20, 21, 22, 23]])
In [3]: i = array( [1,3,4] )
In [4]: j = array( [1,3] )
In [5]: a[ ix_(i,j) ]
Out[5]:
array([[ 5, 7],
[13, 15],
[17, 19]])
Regards,
Ravi
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