issue_comments: 609850841

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https://github.com/pydata/xarray/issues/3941#issuecomment-609850841 https://api.github.com/repos/pydata/xarray/issues/3941 609850841 MDEyOklzc3VlQ29tbWVudDYwOTg1MDg0MQ== 30388627 2020-04-06T15:04:23Z 2020-04-06T15:04:23Z NONE

@dcherian Excellent solution!

If we upgrade this to 3d array and sum by z axis, it seems that method isn't suitable:

``` import xarray as xr import numpy as np

x = 2 y = 2 z = 3 data = np.arange(xyz).reshape(z, y, x)

input array

a = xr.DataArray(data, dims=['z', 'y', 'x'])

start_index array

sindex = xr.DataArray(np.full_like(a[0, ...], 0), dims=['y', 'x'])

end_index array

eindex = xr.DataArray(np.full_like(a[0, ...], 1), dims=['y', 'x']) ```

 
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