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filearray vs SimInf

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

filearray vs SimInf: at a glance

FeaturefilearraySimInf
SectorAnalyticsAnalytics
Velocity score0.00.0
Sparks · 30d00
Top themeson-disk-arrays, memory-safety, c++, performanceepidemiology, stochastic-simulation, bayesian-inference, r-package
Last editorial update6h ago1h ago
WebsiteVisit →Visit →

What is filearray?

The on-disk array layer under RAVE spends its releases hunting segfaults.

filearray stores large arrays on disk and reads them back with little memory overhead, serving as the storage substrate for the RAVE intracranial EEG stack. The 0.2.2 release fixes out-of-bound indexing that caused segfaults along certain margins and an ASAN-flagged signed integer overflow in the load path. The user-facing API has been stable since 0.1.6.

Read the full filearray trajectory →

What is SimInf?

SimInf 10.0 turns an epidemic simulator into a tool that fits models to real time series

SimInf simulates stochastic disease spread over networks of nodes, with a model parser that compiles user-specified transitions to C. Version 10.0.0 was a deliberate major break: the SimInf_pfilter S4 class and the bootstrap filtering interface were redesigned, a replicates slot was added to SimInf_model, a multi-particle variant of the split-step solver arrived, and the package gained Particle Markov Chain Monte Carlo fitting against observed time series. The follow-up 10.1.0 is a single zero-length memcpy fix found by CRAN's M1 checks.

Read the full SimInf trajectory →

filearray vs SimInf: editorial side-by-side

F
filearray
ANALYTICS
0.0

The on-disk array layer under RAVE spends its releases hunting segfaults.

◆ Current state

filearray stores large arrays on disk and reads them back with little memory overhead, serving as the storage substrate for the RAVE intracranial EEG stack. The 0.2.2 release fixes out-of-bound indexing that caused segfaults along certain margins and an ASAN-flagged signed integer overflow in the load path. The user-facing API has been stable since 0.1.6.

◆ Where it's heading

This is infrastructure whose release history reads as a memory-safety log: unprotected C++ variables, buffer sizes exceeding array length, allocations one byte short, endianness on big-endian platforms, and now out-of-bound margins caught by sanitizers. The one sustained feature direction is reducing the cost of operating on arrays too large for memory — lazy operator evaluation through a proxy class, fmap-style application, and marginal collapse. Portability work has steadily removed hard requirements, dropping the C++11 declaration and swapping OpenMP for TinyThreads to get parallelism on macOS.

◆ Prediction

Expect continued sanitizer-driven patches rather than new interfaces; the three-year gap before 0.2.2 suggests releases now arrive only when a crash or a CRAN check demands one.

S
SimInf
ANALYTICS
0.0

SimInf 10.0 turns an epidemic simulator into a tool that fits models to real time series

◆ Current state

SimInf simulates stochastic disease spread over networks of nodes, with a model parser that compiles user-specified transitions to C. Version 10.0.0 was a deliberate major break: the SimInf_pfilter S4 class and the bootstrap filtering interface were redesigned, a replicates slot was added to SimInf_model, a multi-particle variant of the split-step solver arrived, and the package gained Particle Markov Chain Monte Carlo fitting against observed time series. The follow-up 10.1.0 is a single zero-length memcpy fix found by CRAN's M1 checks.

◆ Where it's heading

The package has been moving from simulation toward inference for several releases. The 9.x line built the input side — utilities for cleaning raw individual event data, variables and enumeration constants in the model parser — and 10.0.0 closed the loop by making the simulator fittable to data through PMCMC. The version number was incremented precisely because that required breaking the particle filter interface.

◆ Prediction

Fitting machinery this new usually needs a second pass on usability, so the next releases most likely focus on diagnostics and documentation around PMCMC rather than on the simulation core, which has been stable across the whole 9.x and 10.x history.

Alternatives to filearray and SimInf

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 filearray or SimInf.

See all filearray alternatives → · See all SimInf alternatives →

Recent activity from filearray and SimInf

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

  1. 2mo agofilearraySegfault on out-of-bound margins fixed
  2. 9mo agoSimInfAvoid memcpy on zero-length continuous state vector
  3. 9mo agoSimInfPMCMC fitting arrives; particle filter interface redesigned
  4. 2y agoSimInfDocumentation link anchors; parser dependency fix
  5. 2y agoSimInfModel parser gains variables and enumeration constants
  6. 2y agoSimInfindividual_events() added for raw event data cleaning
  7. 3y agofilearrayLazy operator evaluation and macOS parallelism
  8. 3y agoSimInfConfigure script uses R to locate the compiler
  9. 3y agofilearraySequential read bug in fmap corrected
  10. 4y agofilearrayPartition limit removed by opening files on demand
  11. 4y agofilearrayHeader signatures and symbolic link detection
  12. 4y agofilearrayFlush timing left to the operating system

Frequently asked questions

What is the difference between filearray and SimInf?

They serve adjacent needs but don't currently overlap on shipped themes. filearray and SimInf 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 filearray better than SimInf?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. filearray and SimInf 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 filearray?

Top filearray alternatives in Analytics are ranked by recent ship velocity. Browse the "filearray alternatives" section above for the current picks, or visit /alternatives/filearray-r for the full list with editorial commentary on each.

What are the best alternatives to SimInf?

Top SimInf alternatives in Analytics are ranked by recent ship velocity. Browse the "SimInf alternatives" section above for the current picks, or visit /alternatives/siminf-r for the full list with editorial commentary on each.