issues: 589257707

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
589257707 MDExOlB1bGxSZXF1ZXN0Mzk0ODU2MzI0 3904 Modify code in "Grouped arithmetic" 9200184 closed 0     5 2020-03-27T16:37:10Z 2020-04-05T19:52:27Z 2020-04-05T19:52:27Z CONTRIBUTOR   0 pydata/xarray/pulls/3904

results.append(group - alt.sel(x=label)) must be changed to: results.append(group - alt.sel(letters=label))

 
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