tidytlg
A tables-listings-graphs package that reached CRAN and then went quiet.
Comparison · Analytics
ijtiff vs slider
A side-by-side editorial comparison of ijtiff and slider — release velocity, themes, recent moves, and the top alternatives to consider.
ijtiff vs slider: at a glance
What is ijtiff?
A TIFF reader for scientific imaging that spent its recent releases shedding weight and fixing memory bugs.
ijtiff reads and writes TIFF files the way ImageJ writes them, which ordinary R TIFF readers get wrong — multi-channel, multi-frame, and unusual bit depths. The 3.1.x line is dominated by memory correctness in the C tag-handling layer, alongside dropping the large imager dependency from the display path. Cadence is sporadic, with multi-year gaps.
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.
ijtiff vs slider: editorial side-by-side
ijtiff
0.0ANALYTICS
A TIFF reader for scientific imaging that spent its recent releases shedding weight and fixing memory bugs.
◆ Current state
ijtiff reads and writes TIFF files the way ImageJ writes them, which ordinary R TIFF readers get wrong — multi-channel, multi-frame, and unusual bit depths. The 3.1.x line is dominated by memory correctness in the C tag-handling layer, alongside dropping the large imager dependency from the display path. Cadence is sporadic, with multi-year gaps.
◆ Where it's heading
Two threads run through the window. The C layer is being hardened — memory leaks in tag handling, buffer cleanup, PROTECT errors, validation of malformed files — which is the kind of work that surfaces when a package gets run against real-world files at volume. Separately, the R layer is shedding dependencies, with base graphics replacing imager for display. Both make the package cheaper and safer to depend on rather than more capable.
◆ Prediction
Expect continued C-level correctness work rather than format features, since three of the last three substantive releases were memory or compiler fixes.
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 ijtiff 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 ijtiff or slider.
Tplyr
Tplyr made clinical summary tables explain where every number came from.
rlistings
Clinical listings that keep inheriting their hardest problem — pagination — from the layer below.
hoardr
A cache-directory helper that has shipped nothing but CRAN-triggered patches for seven years.
gigs
gigs redesigned its whole conversion API for rOpenSci, then spent three releases getting the docs to build.
riem
A weather-data client that keeps rewriting its HTTP layer while slowly tightening its API.
See all ijtiff alternatives → · See all slider alternatives →
Recent activity from ijtiff and slider
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 9mo agosliderNon-API OBJECT() removed and a vctrs C signature fixed
- 1y agoijtiffPROTECT-error and documentation fixes across 3.1.1-3.1.3
- 1y agoijtiffDrops the imager dependency; fixes tag-handling memory leaks
- 1y agosliderNon-API STRING_PTR removed; R 4.0.0 now required
- 2y agosliderValgrind test fixes and dependency version bumps
- 3y agoijtiffMoves to rlang::abort() and away from magrittr
- 3y agosliderExtension hooks let clock and almanac types serve as an index
- 3y agoijtiffFixes NEWS.md headings
- 5y agosliderInternal vec_order usage updated ahead of a vctrs break
- 5y agoijtiffCompatibility with libtiff using C99 stdint.h
- 5y agoijtiffQuiets pkg-config warnings; drops LazyData
- 5y agosliderlong double alignment issue fixed for CRAN sanitisers
Frequently asked questions
What is the difference between ijtiff and slider?
They serve adjacent needs but don't currently overlap on shipped themes. ijtiff 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 ijtiff better than slider?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. ijtiff 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 ijtiff?
Top ijtiff alternatives in Analytics are ranked by recent ship velocity. Browse the "ijtiff alternatives" section above for the current picks, or visit /alternatives/ijtiff 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.