issue_comments: 362991345

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https://github.com/pydata/xarray/pull/1885#issuecomment-362991345 https://api.github.com/repos/pydata/xarray/issues/1885 362991345 MDEyOklzc3VlQ29tbWVudDM2Mjk5MTM0NQ== 1217238 2018-02-05T06:15:12Z 2018-02-05T06:15:12Z MEMBER

Is there any chance people would want to make heatmaps involving categorical variables though?

Certainly, but the currently version of 2D plots in xarray doesn't work for these!

If they want to make plots involving categorical variables, I would currently recommend using seaborn.heatmap (we can mention it in the error message, too).

If we do decide to raise an error, why not go one step further and just sort the coordinates automatically?

One reason is that it's not obvious if they would like increasing or decreasing coordinates.

 
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