issues: 211380196

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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
211380196 MDU6SXNzdWUyMTEzODAxOTY= 1290 guess the second coordinate when only one is passed to pcolormesh() 731499 closed 0     0 2017-03-02T12:42:37Z 2017-03-07T14:56:13Z 2017-03-07T14:56:13Z CONTRIBUTOR      

Say I have a DataArray zwith dimensions ('x', 'y'), in that order. If I call z.plot(), it will create a pcolormesh with x the vertical dimension and y the horizontal one. If I want to invert the axes, I need to call z.plot(x='x', y='y'). If I supply only one of the dimensions, i.e. z.plot(x='x'), I get the error message

python ValueError: cannot supply only one of x and y

I think that when calling the plot function on a 2d DataArray and passing only one coordinate, as in z.plot(x='x'), xarray could guess we want the unpassed coordinate to be the other one. I don't see why this would be unsafe.

 
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