to_netcdf -> _fill_value without NaN
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topic-CF conventions
- Dominant language
- Python
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Description
Code Sample
xarray adds a _FillValue to netCDFs even when there is no missing value:
import xarray as xr
ds = xr.Dataset(data_vars={"data": ("dim1", [0., 1.])})
ds.to_netcdf('tst.nc')
xr.open_dataset("tst.nc").data.encoding["_FillValue"]
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Research direction
Reproduce the behavior with the provided Python example, starting from Dataset.to_netcdf and xr.open_dataset. Trace how _FillValue is written for a dataset with no missing values, then verify that the resulting encoding no longer includes it.
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Assessment
- Tech stack
- python
- Domain
- data
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100