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inconsistent behavior in stack/unstack along one dimension #1431
Description
I am using Ubuntu 16, python 3.6, and xarray 0.9.1
A DataArray can be stacked along one dimension, but when unstack is called a ValueError is raised. It seems that either unstack should work, or calling stack should also raise a ValueError.
import xarray as xr
dims = ['a', 'b']
coords = {'a': range(2), 'b':range(2)}
values = [[0, 0], [0, 0]]
dar = xr.DataArray(values, coords, dims)
stacked = dar.stack(z=('a',)) # this works
unstack = stacked.unstack('z') # this raises ValueError
Activity
fujiisoup commentedon May 28, 2017
Hi @d-chambers
I am currently working for more consistent
MultiIndexbehaviour in #1426 .I will take a look also for
stack-unstackbehavior.shoyer commentedon May 30, 2017
Agreed, this does seem inconsistent. Thanks for the report!
mathause commentedon May 22, 2019
This works with current master - so it can probably be closed? @d-chambers? (I think there is a error in the example - shouldn't it be
unstack = stacked.unstack('z')?)d-chambers commentedon May 22, 2019
Yes, fixed the example. This seems to be fixed now, closing. Thanks again!