Add UxDataset.isel()

[philipc2]

Overview

• Introduces a grid-informed implementation of UxDataset.isel()

[erogluorhan]

Great to see this coming in! Regarding the test file:

• How about waiting for PR #1349 to go first, so that we can use the reorg'ed test structure
• There is test_inheritance.py that tests for UxDataArray functions inherited from xarray. Thus, how about creating data array and dataset classes in that one and putting tests here into the dataset class there, rather than creating a new file here?

[philipc2]

There is test_inheritance.py that tests for UxDataArray functions inherited from xarray. Thus, how about creating data array and dataset classes in that one and putting tests here into the dataset class there, rather than creating a new file here?

Thanks for pointing this out, I forgot we had this module. I'll look into merging some of the overlapping tests

[rajeeja]

Good work. Minor comment - add documentation UxDataset.isel() method

[philipc2]

Good work. Minor comment - add documentation UxDataset.isel() method

Thanks! Just added the isel() methods to our API reference.