issue_comments: 529163060

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https://github.com/pydata/xarray/issues/3290#issuecomment-529163060 https://api.github.com/repos/pydata/xarray/issues/3290 529163060 MDEyOklzc3VlQ29tbWVudDUyOTE2MzA2MA== 30388627 2019-09-08T02:22:01Z 2019-09-08T02:22:01Z NONE

@shoyer Thank. It works now. But, I get another question. This is the result of t = ds['time_utc']: <xarray.DataArray 'time_utc' (time: 1, scanline: 357, ground_pixel: 450)> array([[[nan, nan, ..., nan, nan], [nan, nan, ..., nan, nan], ..., [nan, nan, ..., nan, nan], [nan, nan, ..., nan, nan]]], dtype=object) Coordinates: * scanline (scanline) float64 1.0 2.0 3.0 4.0 ... 354.0 355.0 356.0 357.0 * ground_pixel (ground_pixel) float64 1.0 2.0 3.0 4.0 ... 448.0 449.0 450.0 * time (time) datetime64[ns] 2019-08-25 Attributes: long_name: Time of observation as ISO 8601 date-time string If I want to get the minimum value by t.min(skipna=True), I get the strange type: <xarray.DataArray 'time_utc' ()> array(<xarray.core.dtypes.AlwaysGreaterThan object at 0x7f96ac188550>, dtype=object) Can't convert it to string by str(t.min(skipna=True)).

 
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