Use flox for grouped first, last #9986
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1. Use flox where possible. 2. Use simple indexing where possible. Closes pydata#9647
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This reverts commit a848044. Opens pydata#9647 Closes pydata#9993
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* main: (79 commits) fix mean for datetime-like using the respective time resolution unit (#9977) Add `time_unit` argument to `CFTimeIndex.to_datetimeindex` (#9965) remove gate and add a test (#9958) Remove repetitive that (replace it with the) (#9994) add shxarray to the xarray ecosystem list (#9995) Add `shards` to `valid_encodings` to enable sharded Zarr writing (#9948) Use flox for grouped first, last (#9986) Bump the actions group with 2 updates (#9989) Fix some typing (#9988) Remove unnecessary a article (#9980) Fix test_doc_example on big-endian systems (#9949) fix weighted polyfit for arrays with more than 2 dimensions (#9974) Use zarr-fixture to prevent thread leakage errors (#9967) remove dask-expr from CI runs, fix related tests (#9971) Update time coding tests to assert exact equality (#9961) cast type to PDDatetimeUnitOptions (#9963) Suggest the correct name when no key matches in the dataset (#9943) fix upstream dev issues (#9953) Relax nanosecond datetime restriction in CF time decoding (#9618) Remove outdated quantile test. (#9945) ...
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* main: (79 commits) fix mean for datetime-like using the respective time resolution unit (#9977) Add `time_unit` argument to `CFTimeIndex.to_datetimeindex` (#9965) remove gate and add a test (#9958) Remove repetitive that (replace it with the) (#9994) add shxarray to the xarray ecosystem list (#9995) Add `shards` to `valid_encodings` to enable sharded Zarr writing (#9948) Use flox for grouped first, last (#9986) Bump the actions group with 2 updates (#9989) Fix some typing (#9988) Remove unnecessary a article (#9980) Fix test_doc_example on big-endian systems (#9949) fix weighted polyfit for arrays with more than 2 dimensions (#9974) Use zarr-fixture to prevent thread leakage errors (#9967) remove dask-expr from CI runs, fix related tests (#9971) Update time coding tests to assert exact equality (#9961) cast type to PDDatetimeUnitOptions (#9963) Suggest the correct name when no key matches in the dataset (#9943) fix upstream dev issues (#9953) Relax nanosecond datetime restriction in CF time decoding (#9618) Remove outdated quantile test. (#9945) ...
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GroupBy.first? #9647whats-new.rstcc @max-sixty . Alas I struggled with using a plain indexing operation when possible (see the first commit). We have the indices in
.encoded.group_indices