issue_comments: 601947199

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https://github.com/pydata/xarray/pull/3871#issuecomment-601947199 https://api.github.com/repos/pydata/xarray/issues/3871 601947199 MDEyOklzc3VlQ29tbWVudDYwMTk0NzE5OQ== 2272878 2020-03-20T23:06:45Z 2020-03-20T23:06:45Z CONTRIBUTOR

@keewis @max-sixty The map thing is purely a convenience function. I know there are other ways to do it, but since I thought this would be a useful feature for users in its own right, I did it that way. But of course I can do it another way if you disagree.

The one complication is that using DataArray.idxmax and DataArray.idxmin assumes that the Dataset would only ever contain DataArray objects. That may be mostly the case now, but I didn't want to bake that into the code. I could do it using a lambda or nested function, but as I said I thought this approach had other benefits to users.

I will address the other comments inline.

 
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