FOforgingahead·Aug 7, 2021
For dataframes libraries in Ruby, there are Rover[0] and Daru[1]:
[0]:https://github.com/ankane/rover
[1]:https://github.com/SciRuby/daru
In Pandas Manual [pdf]SciRuby
daru
Ruby2021–2021
SciRuby / daru
daru
Data Analysis in RUby
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Data Analysis in RUby
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Also in these discussions
- ankane/rover · linked in 2 of the same discussions
Mentioned in the same Hacker News threads. That is not proof they are substitutes.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by week3 dated mentions
Observed mentions: 2021-05-30 08:29:12 UTC to 2021-08-07 15:55:28 UTC. Weeks start Monday, UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| May 24 | 2021-05-24 00:00:00 UTC | 2021-05-31 00:00:00 UTC | 2 | 0 | 2 |
| May 31 | 2021-05-31 00:00:00 UTC | 2021-06-07 00:00:00 UTC | 0 | 0 | 0 |
| Jun 7 | 2021-06-07 00:00:00 UTC | 2021-06-14 00:00:00 UTC | 0 | 0 | 0 |
| Jun 14 | 2021-06-14 00:00:00 UTC | 2021-06-21 00:00:00 UTC | 0 | 0 | 0 |
| Jun 21 | 2021-06-21 00:00:00 UTC | 2021-06-28 00:00:00 UTC | 0 | 0 | 0 |
| Jun 28 | 2021-06-28 00:00:00 UTC | 2021-07-05 00:00:00 UTC | 0 | 0 | 0 |
| Jul 5 | 2021-07-05 00:00:00 UTC | 2021-07-12 00:00:00 UTC | 0 | 0 | 0 |
| Jul 12 | 2021-07-12 00:00:00 UTC | 2021-07-19 00:00:00 UTC | 0 | 0 | 0 |
| Jul 19 | 2021-07-19 00:00:00 UTC | 2021-07-26 00:00:00 UTC | 0 | 0 | 0 |
| Jul 26 | 2021-07-26 00:00:00 UTC | 2021-08-02 00:00:00 UTC | 0 | 0 | 0 |
| Aug 2 | 2021-08-02 00:00:00 UTC | 2021-08-09 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
3 sources(author here)
Me neither! Don't know how or why it suddenly appeared on the HN main :)
Just to provide a bit of the personal context: this article caused creator of DaRu (Sameer Deshmukh) to contact me and propose to work on DaRu together, and so I did (see @zverok here: https://github.com/SciRuby/daru/graphs/contributors). I also was, for some time, SciRuby/DaRu's mentor for Google Summer of Code (and, IIRC, it was my initial idea that daru-view grew from).
Also, since that article, an independent dataframe library https://github.com/ankane/rover was created by Andrew Kane, handling some of API and implementation in a cleaner way.
That being said, I am not sure that DaRu, or Rover (or "dataframe" idea in general) has enough visibility in the Ruby community. It is mostly thought as "some special scientific thing", while I believe in 2021
Read the rest
it should be seen as one of the necessary everyday high-level datatypes.
That's what I'd focus this article on if I'd written it today.
I am not sure how useful this 5 year old article is. I stopped following the SciRuby project a long time ago
The DaRu (Ruby DataFrame) sub-project's last commit it around a year ago, but the daru-view sub-project (visualization and plotting for web apps) seems to be maintained and updated frequently:
https://github.com/SciRuby/daru
https://github.com/SciRuby/daru-view
While I like Ruby's syntax and community, it is really hard to compete with in high-level scientific programming market when you are competing against Python, R & Julia (and Mathematica and MatLab).
In On DataFrame datatype in Ruby (2016)