issue_comments: 615499609

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https://github.com/pydata/xarray/issues/3213#issuecomment-615499609 https://api.github.com/repos/pydata/xarray/issues/3213 615499609 MDEyOklzc3VlQ29tbWVudDYxNTQ5OTYwOQ== 1217238 2020-04-17T23:01:15Z 2020-04-17T23:01:15Z MEMBER

Wrapping scipy.sparse in xarray would present two challenges:

  1. It only supports 2D arrays, which feels awkward for a library focused on N-dimensional data.
  2. There is no existing "duck array" compatibility layer (i.e., __array_function__) that makes scipy.sparse matrices work like NumPy arrays (in fact, they actually are designed to mimic the deprecated np.matrix).

(2) is the biggest challenge. I don't want to maintain that compatibility layer inside xarray, but if it existed we would be happy to try using it.

pydata/sparse solves both these problems, though again indeed it only has quite limited data structures.

 
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