id,node_id,number,state,locked,title,user,body,created_at,updated_at,closed_at,merged_at,merge_commit_sha,assignee,milestone,draft,head,base,author_association,auto_merge,repo,url,merged_by
391346943,MDExOlB1bGxSZXF1ZXN0MzkxMzQ2OTQz,3871,closed,0,Implement idxmax and idxmin functions,2272878,"This implements `idxmax` and `idxmin` functions similar to thier pandas equivalents.

This is my first time contributing to the project so I am not certain the structure or approach is the best.  Please let me know if there is a better way to implement this.

This also includes two other changes.

First, it drops some code for backwards-compatibility with numpy 1.12, which isn't supported.  This code was hiding an error I needed to have access to in order to get the function working.

Second, it adds an option to `Dataset.map` to let you map `DataArray` methods by name.  I used this to implement the `Dataset` versions of `idxmax` and `idxmin`.

 - [X] Closes #60
 - [X] Tests added
 - [X] Passes `isort -rc . && black . && mypy . && flake8`
 - [X] Fully documented, including `whats-new.rst` for all changes and `api.rst` for new API
",2020-03-20T04:27:32Z,2020-03-31T15:43:48Z,2020-03-29T01:54:25Z,2020-03-29T01:54:25Z,1416d5ae475c0875e7a5d76fa4a8278838958162,,,0,c2968011474fb25569b208205993875e77b39a1d,ca6bb8561f2977509fc5bf53eae0efd080c0a952,CONTRIBUTOR,,13221727,https://github.com/pydata/xarray/pull/3871,
529241005,MDExOlB1bGxSZXF1ZXN0NTI5MjQxMDA1,4622,closed,0,Add additional str accessor methods for DataArray,2272878,"This implements the following additional string accessor methods, based loosely on the versions in pandas:

#### One-to-one

- [x] casefold(self)
- [x] normalize(self, form)

#### One-to-many

- [x] extract(self, pat[, flags, expand])
- [x] extractall(self, pat[, flags])
- [x] findall(self, pat[, flags])
- [x] get_dummies(self[, sep])
- [x] partition(self[, sep, expand])
- [x] rpartition(self[, sep, expand])
- [x] rsplit(self[, pat, n, expand])
- [x] split(self[, pat, n, expand])

#### Many-to-one

- [x] cat(self[, others, sep, na_rep, join])
- [x] join(self, sep)

#### Operators

- [x] `+`
- [x] `*`
- [x] `%`

#### Other

- [x] Allow vectorized arguments.

 - [x] Closes #3940
 - [x] Tests added
 - [x] Passes `isort . && black . && mypy . && flake8`
 - [x] User visible changes (including notable bug fixes) are documented in `whats-new.rst`
 - [x] New functions/methods are listed in `api.rst`
",2020-11-30T02:48:36Z,2021-03-12T08:44:00Z,2021-03-11T17:49:32Z,2021-03-11T17:49:32Z,6ff27cae29df7ca52416f5849f6005858c6eb1e7,,,0,cd8f7e461fe957b408436b2d6ae009fa844b7a3b,c195c2636a94b8136050d2c79c8e357740db66ea,CONTRIBUTOR,,13221727,https://github.com/pydata/xarray/pull/4622,