On Fri, Jul 9, 2010 at 5:52 PM, Joshua Holbrook <[email protected]> wrote: > On Fri, Jul 9, 2010 at 4:22 PM, Keith Goodman <[email protected]> wrote: >> On Fri, Jul 9, 2010 at 5:00 PM, Christopher Barker >> <[email protected]> wrote: >>> Keith Goodman wrote: >>>> On Fri, Jul 9, 2010 at 4:05 PM, Christopher Barker >>>> <[email protected]> wrote: >>>> >>>>> So what would you get if you wanted: >>>>> >>>>> MyDataArray['jones':'wilson'] >>>>> >>>>> or >>>>> >>>>> MyDataArray.names[slice('jones','wilson')] >>>>> >>>>> or whatever the syntax would be? >>>>> >>>>> If it was in alphabetical order, you'd be all set, but what it if >>>>> wasn't? It would be pretty cool if you could get an alphabetical slice. >>>> >>>> If it sorted the data automatically then you couldn't turn off the >>>> sorting. >>> >>> sure -- but what would it mean to ask for a slice by name without >>> sorting? If you want it in the order it happens to be in, you'd use >>> numerical slicing (at least that's the use case I can imagine). >> >> That is true. It would just save you from having to look up the index value. >> >> Another handy method would take tick and axis as input and return the index: >> http://larry.sourceforge.net/reference.html#la.larry.labelindex >> >>>> Without automatic sorting the user gets to decide whether or >>>> not to sort before indexing. A sort ticks along axis function would be >>>> useful, sort of like >>>> http://larry.sourceforge.net/reference.html#la.larry.sortaxis. >>> >>> Yup -- that's nice, and would take care of most issues. >>> >>> -Chris >>> >>> >>> >>> >>> >>> -- >>> Christopher Barker, Ph.D. >>> Oceanographer >>> >>> Emergency Response Division >>> NOAA/NOS/OR&R (206) 526-6959 voice >>> 7600 Sand Point Way NE (206) 526-6329 fax >>> Seattle, WA 98115 (206) 526-6317 main reception >>> >>> [email protected] >>> _______________________________________________ >>> NumPy-Discussion mailing list >>> [email protected] >>> http://mail.scipy.org/mailman/listinfo/numpy-discussion >>> >> _______________________________________________ >> NumPy-Discussion mailing list >> [email protected] >> http://mail.scipy.org/mailman/listinfo/numpy-discussion >> > > Idea: What if we specified axes/ticks like this (using a 2-d example I > made up for myself): > > punnet=DataArray([[1,2],[2,4]], {'row': ['a','A'], 'column': ['a','A']}) > > That is, use a dictionary instead of nested tuples or separate lists?
It is easier to read than the current tuple of labels, ticks. But dictionaries are not ordered. So there is no way for the user to control the ordering of the axes in your example. But I'm just saying that because I'd like to have separate labels and ticks :) _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
