issues: 160466764
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| 160466764 | MDU6SXNzdWUxNjA0NjY3NjQ= | 883 | ENH: Allow ds selection with callable? | 5635139 | closed | 0 | 3 | 2016-06-15T16:31:35Z | 2016-08-02T17:51:43Z | 2016-08-02T17:51:43Z | MEMBER | Inspired by: https://github.com/pydata/xarray/pull/844. This is a more general case for variable selection. We could allow a selection of variables with a callable, similar (but not the same) as pandas' implementation: ``` python In [5]: ds=xr.Dataset({'a': (('x', 'y'), np.random.rand(10,2))}) Out[4]: <xarray.Dataset> Dimensions: (x: 10, y: 2) Coordinates: * x (x) int64 0 1 2 3 4 5 6 7 8 9 * y (y) int64 0 1 Data variables: a (x, y) float64 0.5819 0.1214 0.2645 0.9053 0.6968 0.1608 0.3199 ... In [9]: ds['a'].attrs['clean'] = True potentially:In [10]: ds[lambda x: x.attrs['clean']] ... would return ds['a']``` This would mean functions wouldn't be able to be dataset keys - I don't think that's a big issue, but could arise with callable classes, for example. Another option would be a |
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completed | 13221727 | issue |