randomwalk
randomwalk spent every release getting an R simulation to run in the browser, not on a server.
Comparison · Analytics
fracture vs simStateSpace
A side-by-side editorial comparison of fracture and simStateSpace — release velocity, themes, recent moves, and the top alternatives to consider.
fracture vs simStateSpace: at a glance
What is fracture?
fracture solved decimal-to-fraction conversion years ago and now only answers to CRAN.
A single-purpose package converting decimals to fractions, with a matrix form and a Unicode pretty-printer. The functional work finished in 2021-2022: an explicit denom argument, named-argument-only calling, sensible denominators at 0 and 1, and NA and Inf handled rather than erroring. The only release since is a four-year-later removal of a C++11 system requirement that R's C++17 default made redundant.
What is simStateSpace?
State-space data simulation for R, filled in one function at a time
simStateSpace generates data from state-space models — discrete-time SSM and VAR, continuous-time linear SDE and Ornstein-Uhlenbeck — for use in simulation studies of longitudinal and intensive repeated-measures designs. Recent releases add moment and intercept helpers rather than new model families: SimMVN(), the LinSDE intercept functions, and consolidation of the four separate parameter-simulation functions into one. Release notes are terse, marked Patch, and typically name one or two functions.
fracture vs simStateSpace: editorial side-by-side
fracture
0.0ANALYTICS
fracture solved decimal-to-fraction conversion years ago and now only answers to CRAN.
◆ Current state
A single-purpose package converting decimals to fractions, with a matrix form and a Unicode pretty-printer. The functional work finished in 2021-2022: an explicit denom argument, named-argument-only calling, sensible denominators at 0 and 1, and NA and Inf handled rather than erroring. The only release since is a four-year-later removal of a C++11 system requirement that R's C++17 default made redundant.
◆ Where it's heading
This is a completed utility. Its arc ran from correctness — floating-point rounding, exhaustive tests across millions of fractions — through API tightening, to edge-case tolerance, and then stopped. The 2026 release contains no user-visible change at all; it exists because CRAN's toolchain moved, which is the characteristic maintenance mode of a small package that does one thing correctly.
◆ Prediction
Nothing in these entries suggests new functionality; expect further releases only when R or CRAN policy forces one, as this one did.
simStateSpace
0.0ANALYTICS
State-space data simulation for R, filled in one function at a time
◆ Current state
simStateSpace generates data from state-space models — discrete-time SSM and VAR, continuous-time linear SDE and Ornstein-Uhlenbeck — for use in simulation studies of longitudinal and intensive repeated-measures designs. Recent releases add moment and intercept helpers rather than new model families: SimMVN(), the LinSDE intercept functions, and consolidation of the four separate parameter-simulation functions into one. Release notes are terse, marked Patch, and typically name one or two functions.
◆ Where it's heading
The package is being filled in methodically toward completeness across its four model families — whatever exists for the SSM side eventually appears for LinSDE and back again, as SSMInterceptEta/SSMInterceptY in 1.2.15 were followed by their LinSDE counterparts in 1.2.16. The other visible move was outward: bootstrap components were split into a separate bootStateSpace package, keeping this one to simulation alone. It sits in the same author's cluster of state-space and mediation packages, whose published methods papers the releases cite.
◆ Prediction
Expect the pattern to continue — small patch releases adding the missing counterpart function for a model family already served, with any larger capability likely spun out into its own package as bootstrapping was.
Alternatives to fracture and simStateSpace
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 fracture or simStateSpace.
fastml
fastml added survival modelling and leakage-proof resampling, moving past classification and regression.
abclass
abclass built out angle-based classifiers in 2022, then went quiet except for CRAN upkeep.
churon
churon is spending its entire release history getting a Rust ONNX binding through CRAN.
firatheme
firatheme woke up after four years and started fixing what ggplot2 changed underneath it.
bagyo
bagyo reached CRAN as a Philippine tropical cyclone dataset, with its tags stamped out of order.
See all fracture alternatives → · See all simStateSpace alternatives →
Recent activity from fracture and simStateSpace
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4mo agosimStateSpaceLinSDE intercept helpers added; parameter simulators consolidated
- 6mo agosimStateSpaceSSM intercept functions added
- 6mo agofractureObsolete C++11 requirement removed
- 10mo agosimStateSpacesimStateSpace 1.2.12
- 1y agosimStateSpaceLinSDECov() and LinSDEMean() added
- 1y agosimStateSpaceBootstrap components split into bootStateSpace
- 1y agosimStateSpaceParametric bootstrap functions across all four model families
- 4y agofractureNA and Inf inputs handled instead of erroring
- 4y agofractureExplicit denominator argument; arguments now named-only
- 5y agofractureUnicode fraction formatting and rounding fixes
Frequently asked questions
What is the difference between fracture and simStateSpace?
They serve adjacent needs but don't currently overlap on shipped themes. fracture and simStateSpace 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 fracture better than simStateSpace?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. fracture and simStateSpace 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 fracture?
Top fracture alternatives in Analytics are ranked by recent ship velocity. Browse the "fracture alternatives" section above for the current picks, or visit /alternatives/fracture for the full list with editorial commentary on each.
What are the best alternatives to simStateSpace?
Top simStateSpace alternatives in Analytics are ranked by recent ship velocity. Browse the "simStateSpace alternatives" section above for the current picks, or visit /alternatives/simstatespace for the full list with editorial commentary on each.