STACAS
Single-cell batch correction that learned to use cell labels, then spent three releases chasing Seurat.
Comparison · Analytics
delaporte vs sd2r
A side-by-side editorial comparison of delaporte and sd2r — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:r-package
delaporte vs sd2r: at a glance
What is delaporte?
A Fortran-backed Delaporte distribution package where every release is compiler and CRAN weather.
Delaporte supplies the density, distribution, quantile and random-generation functions for the Delaporte distribution — a Poisson-negative-binomial convolution used for overdispersed count data — implemented in Fortran and called through C. The only user-facing addition in the visible history is explicit OpenMP thread control via getDelapThreads() and setDelapThreads() at 8.2.0.
What is sd2r?
Local Stable Diffusion inference lands in R, shipped as Rcpp bindings over stable-diffusion.cpp
sd2r is a young project wrapping stable-diffusion.cpp for R via Rcpp. The 0.1.0 release established the package structure and the core call surface — sd_ctx(), sd_txt2img(), sd_save_image() — with Vulkan GPU support behind a configure flag and a worked SD 1.5 example at 512x512. The two releases since are not code but asset bundles: precompiled tokenizer vocabularies and BPE merge tables shipped as header files, growing from four tokenizers to twelve.
delaporte vs sd2r: editorial side-by-side
delaporte
0.0ANALYTICS
A Fortran-backed Delaporte distribution package where every release is compiler and CRAN weather.
◆ Current state
Delaporte supplies the density, distribution, quantile and random-generation functions for the Delaporte distribution — a Poisson-negative-binomial convolution used for overdispersed count data — implemented in Fortran and called through C. The only user-facing addition in the visible history is explicit OpenMP thread control via getDelapThreads() and setDelapThreads() at 8.2.0.
◆ Where it's heading
The maintenance burden here is portability, not statistics. Recent entries track a Fortran suffix change for Intel compiler compatibility, architecture-specific test tolerances, type-safety corrections on values crossing the C-to-Fortran boundary, and a thread-count variable relocated from R options to an environment variable to follow an upstream R commit. The distribution functions themselves are settled; what changes is how the compiled code is built and checked across CRAN's platform matrix.
◆ Prediction
Expect the next release to follow another CRAN toolchain or Writing R Extensions policy change, as the last several have. Two of the four visible entries carry no notes at all, so this feed will keep understating what actually shipped.
sd2r
0.0ANALYTICS
Local Stable Diffusion inference lands in R, shipped as Rcpp bindings over stable-diffusion.cpp
◆ Current state
sd2r is a young project wrapping stable-diffusion.cpp for R via Rcpp. The 0.1.0 release established the package structure and the core call surface — sd_ctx(), sd_txt2img(), sd_save_image() — with Vulkan GPU support behind a configure flag and a worked SD 1.5 example at 512x512. The two releases since are not code but asset bundles: precompiled tokenizer vocabularies and BPE merge tables shipped as header files, growing from four tokenizers to twelve.
◆ Where it's heading
The asset releases are the more revealing half of this history. The first bundle covered CLIP, Mistral, Qwen and UMT5 — enough for SD 1.x through Flux. The second adds T5, Gemma, Gemma2 and GPT-OSS merges and splits UMT5 out as the Wan video encoder, so the tokenizer surface now reaches well beyond the image models the package currently exposes. Vocabulary support is being staged ahead of the inference paths that would use it.
◆ Prediction
Given that tokenizers for Flux, SD3 and the Wan video encoder are already bundled while the documented API stops at txt2img, the next step is most likely exposing those model families through the R interface.
Alternatives to delaporte and sd2r
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 delaporte or sd2r.
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 delaporte alternatives → · See all sd2r alternatives →
Recent activity from delaporte and sd2r
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2mo agosd2rTokenizer bundle triples to twelve, adding Gemma, GPT-OSS and Wan
- 5mo agosd2rFirst tokenizer asset bundle: CLIP, Mistral, Qwen, UMT5
- 6mo agosd2rFirst release: stable-diffusion.cpp bindings with Vulkan support ⚡
- 1y agodelaporteThread limit moves to an environment variable; Fortran type checks tightened
- 3y agodelaporteExplicit OpenMP thread control functions added
- 3y agodelaporteCRAN release 8.1.1
- 3y agodelaporteCRAN release 8.1.0
Frequently asked questions
What is the difference between delaporte and sd2r?
Both compete on the same themes — r-package — within Analytics. delaporte and sd2r 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 delaporte better than sd2r?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. delaporte and sd2r 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 delaporte?
Top delaporte alternatives in Analytics are ranked by recent ship velocity. Browse the "delaporte alternatives" section above for the current picks, or visit /alternatives/delaporte for the full list with editorial commentary on each.
What are the best alternatives to sd2r?
Top sd2r alternatives in Analytics are ranked by recent ship velocity. Browse the "sd2r alternatives" section above for the current picks, or visit /alternatives/sd2r for the full list with editorial commentary on each.