# Krzysztof Joachimiak

Part of: [People](/people.md)

- Packages: 4 (1 before)
- Maintains: 3 (1 before)
- First on CRAN: 2020 (named on a release)
- Co-authors: 11 (on the same packages)

## Packages


### Maintains (3)

- [eponge](/cran/eponge.md): Keep Your Environment Clean
  - 0.1.0, CRAN
  - Author, maintainer
  - On 1 release, 24 Mar 2020
  - Maintainer 24 Mar 2020 to now
- [matricks](/cran/matricks.md): Useful Tricks for Matrix Manipulation
  - 0.8.2, CRAN
  - Author, maintainer
  - On 1 release, 23 Feb 2020
  - Maintainer 23 Feb 2020 to now
- [path.chain](/cran/path.chain.md): Concise Structure for Chainable Paths
  - 1.0.0, CRAN
  - Author, maintainer
  - On 2 releases, 23 Sep 2020 to 8 Oct 2024
  - Maintainer 23 Sep 2020 to now

### Other roles (1)

- [torch](/cran/torch.md): Tensors and Neural Networks with 'GPU' Acceleration
  - 0.17.0, CRAN
  - Contributor
  - On 25 releases, 28 Apr 2021 to 11 Apr 2026

### Previous (1)

- [m5](/cran/m5.md): 'M5 Forecasting' Challenges Data
  - 0.1.1, CRAN
  - Not on the current release
  - On 1 release, 12 Sep 2022
  - Maintainer 12 Sep 2022 to 2 Jun 2025
  - Left CRAN 2 Jun 2025

## Needs attention

Nothing needs attention.

3 OK.

| Package | Group | Errors | Warnings | Notes | OK | Other needs | Need it |
| --- | --- | ---: | ---: | ---: | ---: | --- | ---: |
| eponge | Clear | 0 | 0 | 0 | 13 |  | 0 |
| matricks | Clear | 0 | 0 | 0 | 13 |  | 0 |
| path.chain | Clear | 0 | 0 | 0 | 13 |  | 0 |

Each platform has one mark, newest R first. Checks were read on 28 Oct.

## Releases

Releases: all 30, as maintainer 5 (releasesby=maint).

Releases are listed by year, newest first.

| Year | Releases | As maintainer | Busiest week |
| ---: | ---: | ---: | --- |
| 2026 | 1 | 0 | 9 to 15 Apr 2026, 1 release |
| 2025 | 9 | 0 | 29 Jan to 4 Feb 2025, 2 releases |
| 2024 | 2 | 1 | 20 to 26 May 2024, 1 release |
| 2023 | 4 | 0 | 22 to 28 Jan 2023, 1 release |
| 2022 | 7 | 1 | 12 to 18 Feb 2022, 1 release |
| 2021 | 4 | 0 | 23 to 29 Apr 2021, 1 release |
| 2020 | 3 | 3 | 19 to 25 Feb 2020, 1 release |

## Co-authors

- [Hamada S. Badr](/people/Hamada+S.+Badr.md): torch
- [Athos Damiani](/people/Athos+Damiani.md): torch
- [Daniel Falbel](/people/Daniel+Falbel.md): torch
- [Sebastian Fischer](/people/Sebastian+Fischer.md): torch
- [Tomasz Kalinowski](/people/Tomasz+Kalinowski.md): torch
- [Javier Luraschi](/people/Javier+Luraschi.md): torch
- [Maximilian Pichler](/people/Maximilian+Pichler.md): torch
- [Christophe Regouby](/people/Christophe+Regouby.md): torch
- [RStudio](/people/RStudio.md): torch
- [Dmitriy Selivanov](/people/Dmitriy+Selivanov.md): torch
- [Peter Wurm](/people/Peter+Wurm.md): path.chain

## Places

### Repositories (4)

- [krzjoa](/repos/krzjoa.md) (personal account, 3): [eponge](/repos/krzjoa/eponge.md), [matricks](/repos/krzjoa/matricks.md), [path.chain](/repos/krzjoa/path.chain.md)
- [mlverse](/repos/mlverse.md) (organization, 1): [torch](/repos/mlverse/torch.md)

### Task views (1 of 50)

- [MachineLearning](/topics/cran/MachineLearning.md) (Machine Learning & Statistical Learning, 1): [torch](/cran/torch.md)

Left out: 1 package that named Krzysztof Joachimiak only on earlier releases (1 has left CRAN).

## AI tools

All 4 packages that name them (aiscope=maintains for the 3 they maintain). The grid (aiview=time for every tool over time, and aitool=KEY opens one tool).

The columns are the 3 packages they maintain and then the 1 others, and each one was searched.

- Any tool: 1 of 4
- Claude Code: 1 of 4 (torch)
- GitHub Copilot: 1 of 4 (torch)

[About these findings](/about/ai-tools.md)

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R Observatory is independent of the R Project, CRAN and Bioconductor. The same page for people is at /people/Krzysztof+Joachimiak, and every address is listed at /llms.txt.