groupby_bins along two dims simultaneously

[fmaussion]

I probably missed it, but what is the way to apply groupby (or rather groupby_bins) in order to achieve the following in xarray?

da = xr.DataArray(np.arange(16).reshape((4, 4)))
da
<xarray.DataArray (dim_0: 4, dim_1: 4)>
array([[ 0,  1,  2,  3],
       [ 4,  5,  6,  7],
       [ 8,  9, 10, 11],
       [12, 13, 14, 15]])
Coordinates:
  * dim_0    (dim_0) int64 0 1 2 3
  * dim_1    (dim_1) int64 0 1 2 3

# should be aggregated to (in case of summing) to obtain
dagg
<xarray.DataArray (dim_0: 2, dim_1: 2)>
array([[10, 18],
       [42, 50]])
Coordinates:
  * dim_1    (dim_1) int64 0 2
  * dim_0    (dim_0) int64 0 2

[shoyer]

The short answer is -- it doesn't work yet. We need multi-dimensional groupby first: #924

[fmaussion]

Thanks Stephan. Looking forward to see it implemented!

[stale]

In order to maintain a list of currently relevant issues, we mark issues as stale after a period of inactivity

If this issue remains relevant, please comment here or remove the stale label; otherwise it will be marked as closed automatically