issues: 245186903

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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
245186903 MDU6SXNzdWUyNDUxODY5MDM= 1486 boolean indexing 10137 closed 0     2 2017-07-24T19:39:42Z 2017-09-07T08:06:49Z 2017-09-07T08:06:48Z NONE      

I am trying to figure out how boolean indexing works in xarray. I have a couple of data arrays below: X_day[latitude,longitude,time] X_night[latitude,longitude,time] Rule[latitude,longitude]

I want to merge X_day and X_night as a new X based on Rule. First I make a copy of X_day to be X: X = X_day Then I tried: X[Rule==True, :] = X_night and this: X.values[Rule==True, :] = X_night.values and also this: X.where(Rule==True) = X_night None of the above assignment worked. Please help.

 
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