r2rtf
The clinical-report table engine learned Chinese, then learned to leave RTF entirely
Comparison · Analytics
markdown vs slider
A side-by-side editorial comparison of markdown and slider — release velocity, themes, recent moves, and the top alternatives to consider.
markdown vs slider: at a glance
What is markdown?
A package that finished, declared itself done, and handed its core function to a successor.
The R markdown package spent 2023 adding real capability — fenced code block attributes, HTML widget rendering, compatibility shims for rmarkdown's document functions. Then 1.13 declared the package feature-complete and maintenance-only, naming litedown as where development continues. Version 2.0 completes that handover: mark(), the package's core function, is now a thin wrapper around litedown::mark(), and users are told to call litedown directly.
What is slider?
Feature-complete since 2021, and every release since has been paying CRAN's C API bill
slider provides sliding-window and index-aware window functions for R, with a C implementation underneath and a specialised fast path for common aggregations. The user-facing surface has been stable since 0.3.0 in late 2022. Everything after that is compliance and platform work: STRING_PTR removed in 0.3.2, OBJECT() removed in 0.3.3, a vctrs callable's C signature corrected, and the minimum R version raised twice.
markdown vs slider: editorial side-by-side
markdown
0.0ANALYTICS
A package that finished, declared itself done, and handed its core function to a successor.
◆ Current state
The R markdown package spent 2023 adding real capability — fenced code block attributes, HTML widget rendering, compatibility shims for rmarkdown's document functions. Then 1.13 declared the package feature-complete and maintenance-only, naming litedown as where development continues. Version 2.0 completes that handover: mark(), the package's core function, is now a thin wrapper around litedown::mark(), and users are told to call litedown directly.
◆ Where it's heading
This is a controlled retirement rather than abandonment. The maintainer closed out the outstanding feature work first, announced the succession explicitly, and only then reduced the package to a compatibility surface. What remains is a stable shim for the installed base while new work happens in a package with a different name and scope.
◆ Prediction
Expect only CRAN-driven fixes here from now on, with any genuinely new rendering capability appearing in litedown instead. The entries state this policy directly, so the main open question is how long the wrapper is kept before deprecation warnings appear.
slider
0.0ANALYTICS
Feature-complete since 2021, and every release since has been paying CRAN's C API bill
◆ Current state
slider provides sliding-window and index-aware window functions for R, with a C implementation underneath and a specialised fast path for common aggregations. The user-facing surface has been stable since 0.3.0 in late 2022. Everything after that is compliance and platform work: STRING_PTR removed in 0.3.2, OBJECT() removed in 0.3.3, a vctrs callable's C signature corrected, and the minimum R version raised twice.
◆ Where it's heading
Two forces set the release schedule, and neither is feature demand. The first is CRAN closing off non-API C entry points, which packages reaching into R internals for speed have to unwind one accessor at a time — slider is on its second such release with no visible loss of function. The second is vctrs, whose breaking changes slider absorbs ahead of time; 0.2.2 exists solely to prepare for one. The last release that added anything callers can see was 0.3.0's slider_plus() and slider_minus() extension hooks.
◆ Prediction
Expect the pattern to continue: another non-API accessor removal or a vctrs compatibility release, rather than new window functions. The C-level surface is the only part of this package still moving.
Alternatives to markdown and slider
Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either markdown or slider.
DoseFinding
New stewardship at openpharma, then two releases adding the methods MCP-Mod was missing
webmockr
The stubbing library added httr2 support, then spent a year cutting itself free of everything else
crul
crul took mocking back from webmockr and made it a property of the client itself
dendroNetwork
Six releases, six identical bodies — the feed carries the package abstract instead of release notes
chattr
chattr deleted every LLM integration it had written and outsourced the lot to ellmer
See all markdown alternatives → · See all slider alternatives →
Recent activity from markdown and slider
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 9mo agosliderNon-API OBJECT() removed and a vctrs C signature fixed
- 1y agomarkdownmark() becomes a thin wrapper around litedown::mark()
- 1y agosliderNon-API STRING_PTR removed; R 4.0.0 now required
- 2y agomarkdownPackage declared feature-complete; work moves to litedown ⚡
- 2y agomarkdownAdds compatibility shims for rmarkdown's document functions
- 2y agomarkdownFixes verbatim code blocks with language attributes
- 2y agosliderValgrind test fixes and dependency version bumps
- 2y agomarkdownFixes raw blocks broken by code-block attribute support
- 2y agomarkdownFenced code blocks gain attributes; HTML widgets render
- 3y agosliderExtension hooks let clock and almanac types serve as an index
- 5y agosliderInternal vec_order usage updated ahead of a vctrs break
- 5y agosliderlong double alignment issue fixed for CRAN sanitisers
Frequently asked questions
What is the difference between markdown and slider?
They serve adjacent needs but don't currently overlap on shipped themes. markdown and slider are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is markdown better than slider?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. markdown and slider are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.
What are the best alternatives to markdown?
Top markdown alternatives in Analytics are ranked by recent ship velocity. Browse the "markdown alternatives" section above for the current picks, or visit /alternatives/markdown for the full list with editorial commentary on each.
What are the best alternatives to slider?
Top slider alternatives in Analytics are ranked by recent ship velocity. Browse the "slider alternatives" section above for the current picks, or visit /alternatives/slider for the full list with editorial commentary on each.