playing with xcdat #558
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playing with xcdat #558
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xchourio
reviewed
Aug 4, 2025
| "/data/remic/mydatafiles/Malawi/test/ALL_20200917/MERGED_precip_daily/" | ||
| ).glob("*.nc"))) | ||
| data = xr.open_mfdataset( | ||
| netcdf, |
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Shouldn’t it be opened using xc? Did I miss something, or does xcdat act on xr with some parameter?
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xc.openmfdataset doesn't work, or rather doesn't bring anything in this case, because the individual ENACTS files don't have time dimension. So I need to reuse what we had written from zarrifcation codes to read the files and get time from file names. Then having xc module available, the DataArray created is considered "xcdat" compatible (there is some sort of boolean attribute showing when printing the DataArray) and then the bounds related functions (that are also xr I believe) or the specific xcdat methods are applicable.
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This is not meant to be merged: this is an experiment about using xcdat to represent Time as intervals as opposed to points only, a prerequisite to make functionality that creates yearly seasonal time series.
For the installation, I ran it only for the linux platform since it seems that the environment for windows goes bananas. You can create the environment following the instructions here
The datasets I tested are ENACTS ones in my shared drive so you'll get access if you work on mako.
I had to copy some functions from enactstozarr to calc to get rid of the CONFIG needs.
You can experiment by running the first test function of test_calc
python -m pytest tests/test_calc.py::test_xcdat
Set the final assess to False and uncomment the prints to see what objects look like.
I left some comments to explain the different things I played with.
Let me know what this inspires you.