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id node_id number title user state locked assignee milestone comments created_at updated_at ▲ closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
525685973 MDExOlB1bGxSZXF1ZXN0MzQzMjU4Njg2 3550 cov() and corr() - finalization r-beer 45787861 closed 0     52 2019-11-20T09:40:54Z 2020-05-25T16:57:05Z 2020-05-25T16:57:04Z NONE   0 pydata/xarray/pulls/3550

Dear maintainers,

this is my first PR and contribution to xarray. I have read the contributing guidelines and did my best to conform to your code of conduct. However, I would be happy if you have a closer look whether everything is correct and give feedback for improvement!

As I don't have push access to @hrishikeshac's fork, I created this PR to add the final changes for PR #2652.

  • [x] Closes #2652
  • [x] Tests had been added in #2652
  • [ ] Passes black . && mypy . && flake8
  • [x] black
  • [x] flake8
  • [ ] mypy
  • [x] Fully documented, including whats-new.rst for all changes and api.rst for new API
  • [x] whats-new.rst
  • [x] api.rst
  • [x] example notebook for usage of corr() and cov()
  • [x] where and how to write the examples?
  • [x] covariance
  • [x] correlation
  • [x] moved implementation of cov() and corr() to computation
  • [x] add test_cov()
  • [x] remove da.cov and da.corr
 
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     xarray 13221727 pull
526243198 MDU6SXNzdWU1MjYyNDMxOTg= 3556 doc\environment.yml not found r-beer 45787861 closed 0     6 2019-11-20T22:07:36Z 2019-11-20T22:29:46Z 2019-11-20T22:29:46Z NONE      

MCVE Code Sample

I would like to contribute to the xarray documentation.

Therefore, I tried to install the xarray-docs environment as described in the contributing guidelines: ```bash

Create and activate the docs environment

conda env create -f doc/environment.yml ```

Expected Output

Creates the xarray-docs environment such that it can be activated.

Problem Description

bash EnvironmentFileNotFound: '...\xarray\doc\environment.yml' file not found

Output of xr.show_versions()

xarray: 0.14.1+11.ga4d04466

INSTALLED VERSIONS ------------------ commit: None python: 3.7.5 (default, Oct 31 2019, 15:18:51) [MSC v.1916 64 bit (AMD64)] python-bits: 64 OS: Windows OS-release: 10 machine: AMD64 processor: Intel64 Family 6 Model 142 Stepping 10, GenuineIntel byteorder: little LC_ALL: None LANG: en_US.UTF-8 LOCALE: None.None libhdf5: 1.10.4 libnetcdf: 4.6.1 xarray: 0.14.1+11.ga4d04466 pandas: 0.25.3 numpy: 1.17.3 scipy: 1.3.1 netCDF4: 1.4.2 pydap: None h5netcdf: None h5py: None Nio: None zarr: None cftime: 1.0.4.2 nc_time_axis: None PseudoNetCDF: None rasterio: None cfgrib: None iris: None bottleneck: None dask: None distributed: None matplotlib: 3.1.1 cartopy: None seaborn: None numbagg: None setuptools: 41.6.0.post20191030 pip: 19.3.1 conda: None pytest: 5.2.4 IPython: 7.9.0 sphinx: None 
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   completed xarray 13221727 issue
525642358 MDU6SXNzdWU1MjU2NDIzNTg= 3549 Creating conda environment as described in the contributing guidelines gives ResolvePackageNotFound error r-beer 45787861 closed 0     2 2019-11-20T08:12:18Z 2019-11-20T10:12:57Z 2019-11-20T09:47:57Z NONE      

MCVE Code Sample

Following the contributing to xarray guidelines I tried to create the xarray-test environment as follows: ```bash

Create and activate the build environment

conda env create -f ci/requirements/py36.yml ```

Expected Output

Creates conda environment, such that conda activate xarray-tests can be used to activate it.

Problem Description

The creation of the conda environment fails, indicating ResolvePackageNotFound error: ```bash Collecting package metadata: done Solving environment: failed

ResolvePackageNotFound: - pynio - cdms2 ```

After some searching I tried to first create the conda environment and subsequently updating it

bash conda env update -f ci/requirements/py36.yml but this resulted in the same error:

```bash Collecting package metadata: done Solving environment: failed

ResolvePackageNotFound: - pynio - cdms2 ```

Output of xr.show_versions()

Doesn't make sense for this issue, does it?

 
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   completed xarray 13221727 issue

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