larry-discuss team mailing list archive

[Keith Goodman <kwgoodman@xxxxxxxxx>]

On Mon, Feb 8, 2010 at 7:15 AM,  <josef.pktd@xxxxxxxxx> wrote:
> On Mon, Feb 8, 2010 at 10:05 AM, Keith Goodman <kwgoodman@xxxxxxxxx> wrote:
>> After a long thread on how to support label indexing in larry, here's
>> where we ended up:
>>
>> 1. Remove the indexing of labels by strings from the trunk.
>>
>> 2. Create a method larry.lix that can be used for label indexing like this:
>>
>> lar.lix['a']
>> lar.lix['a':]
>> lar.lix[:, 'a']
>> lar.lix['a', 'b', 'c':]
>
> I'm not sure what the last index means, if there are several labels
> for the same axis, they would need to be in a list_like
> lar.lix[['a', 'b', 'c'], :]   to distinguish different elements for
> one axis from elements for several axis.

Yep. Good catch. Typo.

>
> Josef
>
>>
>> Only labels and slices are allowed. Inside the function the labels
>> will be converted to indices and then a call will be made to
>> lar[converted_index].
>>
>> 3. Indexing with more than one list will do rectangular indexing, not
>> fancy indexing.
>>
>> OK, that's it. I'll start. I'll need help with #3
>>
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>