issue_comments: 171453513

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https://github.com/pydata/xarray/pull/702#issuecomment-171453513 https://api.github.com/repos/pydata/xarray/issues/702 171453513 MDEyOklzc3VlQ29tbWVudDE3MTQ1MzUxMw== 1217238 2016-01-13T22:12:06Z 2016-01-13T22:12:06Z MEMBER

hmm, is dask.array dropna not implemented? I don't see why it couldn't conceptually be done (though a bit unfamiliar with the impl)

We have a dropna in xarray. The problem is that for dask arrays, you need to know the shape of the result. With dropna, you don't know the shape until you've actually done the computation, so it can't be done lazily.

 
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