STACAS
Single-cell batch correction that learned to use cell labels, then spent three releases chasing Seurat.
Comparison · Analytics
atrrr vs gratia
A side-by-side editorial comparison of atrrr and gratia — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:r-package
atrrr vs gratia: at a glance
What is atrrr?
The R client for Bluesky adds a firehose and stops assuming Bluesky is the server
atrrr wraps the AT Protocol for R, covering posting, search, profiles, lists, direct messages and starter packs. The latest release adds an experimental firehose implementation and allows connecting to personal data servers other than Bluesky's — Eurosky is the example given. Earlier releases built out the posting surface: videos, multiple images, link preview cards, hashtags, and ggplot2 objects posted directly.
What is gratia?
The tidy front-end for GAMs, now stable enough that upstream ggplot2 sets its release calendar.
gratia wraps mgcv-fitted generalized additive models in tidy data frames and ggplot2 graphics — smooth_estimates(), fitted_values(), derivatives(), draw() and appraise() cover evaluation, prediction and diagnostics. The API reached its intended shape at 0.9.0, when every generated column was renamed to a dot-prefixed form, and 0.10.0 added conditional_values() for covariate-conditional prediction plots.
atrrr vs gratia: editorial side-by-side
atrrr
0.0ANALYTICS
The R client for Bluesky adds a firehose and stops assuming Bluesky is the server
◆ Current state
atrrr wraps the AT Protocol for R, covering posting, search, profiles, lists, direct messages and starter packs. The latest release adds an experimental firehose implementation and allows connecting to personal data servers other than Bluesky's — Eurosky is the example given. Earlier releases built out the posting surface: videos, multiple images, link preview cards, hashtags, and ggplot2 objects posted directly.
◆ Where it's heading
Two years of work made atrrr a capable REST client for one network. This release starts undoing that second part. The firehose is a different access mode — a stream rather than a request — which is what researchers doing collection at scale need, and PDS-agnosticism means the package addresses the protocol rather than the company. The rest of the changelog is steadily maintenance-shaped: repeated httr2 compatibility work, endpoint changes tracked as they happen.
◆ Prediction
The firehose is labelled experimental, so the next release most likely stabilises it rather than opening another front — though the notes give no detail on what remains unfinished.
gratia
0.0ANALYTICS
The tidy front-end for GAMs, now stable enough that upstream ggplot2 sets its release calendar.
◆ Current state
gratia wraps mgcv-fitted generalized additive models in tidy data frames and ggplot2 graphics — smooth_estimates(), fitted_values(), derivatives(), draw() and appraise() cover evaluation, prediction and diagnostics. The API reached its intended shape at 0.9.0, when every generated column was renamed to a dot-prefixed form, and 0.10.0 added conditional_values() for covariate-conditional prediction plots.
◆ Where it's heading
The package has moved through a long rewrite cycle and out the other side. Successive releases replaced evaluate_smooth() with smooth_estimates(), rebuilt draw() on top of it, then renamed the entire output vocabulary to avoid colliding with user variables. That work is finished; 0.11.1 is driven almost entirely by ggplot2 4.0.0 compatibility, with new mgcv family support for quantile residuals riding along. Development now tracks upstream breakage rather than internal redesign.
◆ Prediction
Expect the next releases to continue absorbing ggplot2 4.x and mgcv changes, with incremental family coverage in quantile_residuals() as the visible new work. The entries give no signal on which mgcv families come next.
Alternatives to atrrr and gratia
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 atrrr or gratia.
ggtrace
A debugger for ggplot2's internals, hardening its grip as the internals it traces keep moving.
kde1d
A univariate density estimator that added zero-inflated data and reopened its C++ API to do it.
svines
Stationary vine copulas for time series, released in lockstep with the rest of Nagler's vine stack.
gghighlight
A single-purpose ggplot2 extension that has spent six years tracking ggplot2 instead of growing.
rtrek
A Star Trek data package that became a Memory Alpha web client and has been patching scrapers ever since.
See all atrrr alternatives → · See all gratia alternatives →
Recent activity from atrrr and gratia
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2mo agoatrrrExperimental firehose and support for non-Bluesky PDS ⚡
- 11mo agogratiaggplot2 4.0.0 compatibility, plus four more quantile-residual families
- 1y agoatrrrDirect messages and starter-pack queries
- 1y agoatrrrPosting and auth fixes for httr2 1.1.0
- 1y agoatrrrVideo posting, multi-image support, and list retrieval
- 1y agogratiaconditional_values() replaces vis.gam for conditional prediction plots
- 1y agoatrrrLanguage, tag and label options on posts
- 2y agogratiaparametric_effects() joins the dot-prefix rename; LSS families begin
- 2y agogratiaEvery generated column gains a dot prefix ⚡
- 2y agoatrrrPreview cards, hashtags, and direct ggplot2 posting
- 3y agogratiaReal variable names in smooth_samples(), plus dplyr 1.1.0 fixes
- 4y agogratiaM1 example output fixes and confint tibble returns
Frequently asked questions
What is the difference between atrrr and gratia?
Both compete on the same themes — r-package — within Analytics. atrrr and gratia 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 atrrr better than gratia?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. atrrr and gratia 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 atrrr?
Top atrrr alternatives in Analytics are ranked by recent ship velocity. Browse the "atrrr alternatives" section above for the current picks, or visit /alternatives/atrrr for the full list with editorial commentary on each.
What are the best alternatives to gratia?
Top gratia alternatives in Analytics are ranked by recent ship velocity. Browse the "gratia alternatives" section above for the current picks, or visit /alternatives/gratia for the full list with editorial commentary on each.