feat: added spatial coarsening for input

[alirashidAR]

Pull Request

Description

Issue #92
Added the coarsen_data function in ocf_data_sampler/load/utils.py to coarsen the data to a specified resolution in degrees.

Checklist:

• My code follows OCF's coding style guidelines
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have checked my code and corrected any misspellings

[alirashidAR]

@Sukh-P, I think the file path being used for testing is incorrect.

ERROR tests/torch_datasets/test_pvnet_uk_regional.py::test_pvnet_no_gsp - FileNotFoundError: Unable to find group: file:///home/runner/work/ocf-data-sampler/ocf-data-sampler/tests/test_data/non_hrv_shell.zarr.zip

[peterdudfield]

You ok to merge in the latest main branch? This should get tests passing

[alirashidAR]

Yes , thank you !

[codecov]

Codecov Report

Attention: Patch coverage is 22.22222% with 7 lines in your changes missing coverage. Please review.

Project coverage is 92.34%. Comparing base (ad6d738) to head (6f04314).
Report is 50 commits behind head on main.

Files with missing lines	Patch %	Lines
ocf_data_sampler/load/utils.py	22.22%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #115      +/-   ##
==========================================
- Coverage   94.71%   92.34%   -2.37%     
==========================================
  Files          39       40       +1     
  Lines        1060     1163     +103     
==========================================
+ Hits         1004     1074      +70     
- Misses         56       89      +33     

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[alirashidAR]

@peterdudfield is this ready to merge or any other changes needed?

[Sukh-P]

Hey @alirashidAR I think this is missing a unit test, there is an example of a test here and you could use this test data which is constructed here, hope that is okay to add, thank you!

Also this function I think would be better suited in this file as this is where it will actually be called and it won't be used anywhere else currently, it won't be called in any of the functions in the load folder

[Sukh-P]

I think this import can be removed now, not blocking merging in but would be nice to clean up before we do! Thanks

[Sukh-P]

Looks great, thanks for adding this in!

[alirashidAR]

Thank you for the approval !