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Comparison · Infra & APIs

campsis vs midr

A side-by-side editorial comparison of campsis and midr — release velocity, themes, recent moves, and the top alternatives to consider.

campsis vs midr: at a glance

Featurecampsismidr
SectorInfra & APIsInfra & APIs
Velocity score3.80.0
Sparks · 30d10
Top themespharmacometrics, clinical-trial-simulation, breaking-changes, json-interfaceexplainable-ai, surrogate-models, shapley, survival-analysis
Last editorial update4h ago46m ago
WebsiteVisit →Visit →

What is campsis?

Campsis breaks its API on purpose: snake_case throughout, RxODE compatibility cut loose.

Campsis runs clinical-trial simulations from pharmacometric models, sitting on mrgsolve and rxode2 as interchangeable engines, with the sibling package Campsismod supplying the model object layer. Version 1.9.0 is the release where the suite stops carrying its history: the whole API migrates to snake_case, backward compatibility with the old RxODE package is removed, and result processing is refactored into output functions that can be applied as a collection, with an NCA table the first substantial one. Campsismod made the same snake_case move a week earlier, so this is a suite-wide rename rather than one package's decision.

Read the full campsis trajectory →

What is midr?

A black-box interpreter reaches CRAN, then learns multi-class and survival responses

midr explains black-box models by fitting an interpretable surrogate through Maximum Interpretation Decomposition — main effects plus second-order interactions, with exact Shapley values for the surrogate. Two months after its first CRAN release it can take a matrix response, which covers multi-class classification and survival models, and hold collections of fitted interpretations in midlist and midrib objects for comparison.

Read the full midr trajectory →

campsis vs midr: editorial side-by-side

C
campsis
INFRA · APIS
3.8

Campsis breaks its API on purpose: snake_case throughout, RxODE compatibility cut loose.

◆ Current state

Campsis runs clinical-trial simulations from pharmacometric models, sitting on mrgsolve and rxode2 as interchangeable engines, with the sibling package Campsismod supplying the model object layer. Version 1.9.0 is the release where the suite stops carrying its history: the whole API migrates to snake_case, backward compatibility with the old RxODE package is removed, and result processing is refactored into output functions that can be applied as a collection, with an NCA table the first substantial one. Campsismod made the same snake_case move a week earlier, so this is a suite-wide rename rather than one package's decision.

◆ Where it's heading

The 1.8 and 1.9 releases together describe a package being made drivable from outside R. JSON interfaces arrived first for models in Campsismod 1.3.0 and for datasets in Campsis 1.8.0, then extended to scenarios, settings and study replication; the output side has now been generalised the same way, from fixed result processing to a collection of output functions applied to simulated results. Renaming every function and cutting RxODE loose is the cost of that consolidation, paid in one deliberate breaking release rather than spread across several.

◆ Prediction

With the rename and the RxODE removal behind it, the next releases should restore the rxode2 engine to the test suite, which 1.9.0 removed temporarily, and continue filling out the output-function catalogue beyond NCA. The JSON surface looks like the intended entry point for driving Campsis from outside R, though the entries do not say what is meant to consume it.

M
midr
INFRA · APIS
0.0

A black-box interpreter reaches CRAN, then learns multi-class and survival responses

◆ Current state

midr explains black-box models by fitting an interpretable surrogate through Maximum Interpretation Decomposition — main effects plus second-order interactions, with exact Shapley values for the surrogate. Two months after its first CRAN release it can take a matrix response, which covers multi-class classification and survival models, and hold collections of fitted interpretations in midlist and midrib objects for comparison.

◆ Where it's heading

The releases move outward along two axes at once: what can be interpreted, and how much of it fits in memory. Version 0.5.3 rebuilt the fitting path to avoid materialising large design matrices and added a save.memory option; 0.6.0 widened the response from a vector to a matrix and added parametric link functions. Class and argument names were shortened in the same release, so the package is still willing to break itself this early.

◆ Prediction

With multiple models now held in one object and visualisation methods for them, comparison across models is the surface most likely to fill out next — the collection classes exist but the notes describe manipulation and plotting rather than any comparison metric.

Alternatives to campsis and midr

Other Infra & APIs 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 campsis or midr.

See all campsis alternatives → · See all midr alternatives →

Recent activity from campsis and midr

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 15d agocampsissnake_case across the API; RxODE compatibility removed
  2. 5mo agocampsisJSON arguments reach Dataset, Scenarios and Settings
  3. 5mo agomidrMatrix responses bring multi-class and survival models in scope
  4. 7mo agomidrFirst CRAN release: MID surrogate models for black-box explanation
  5. 7mo agomidrMemory-efficient fitting for large design matrices
  6. 7mo agocampsisMaintenance release for future package warnings
  7. 7mo agocampsisJSON import for Campsis datasets
  8. 1y agocampsisDosing gains vectorized compartments and cycle repetition
  9. 1y agocampsisParameter uncertainty from SIR and bootstrap output

Frequently asked questions

What is the difference between campsis and midr?

They serve adjacent needs but don't currently overlap on shipped themes. campsis is currently shipping more aggressively (velocity 3.8 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is campsis better than midr?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. campsis is currently shipping more aggressively (velocity 3.8 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.

What are the best alternatives to campsis?

Top campsis alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "campsis alternatives" section above for the current picks, or visit /alternatives/campsis for the full list with editorial commentary on each.

What are the best alternatives to midr?

Top midr alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "midr alternatives" section above for the current picks, or visit /alternatives/midr for the full list with editorial commentary on each.