tidyr
tidyr replaced separate() with a family that says what it does.
Comparison · Analytics
Distributions.jl vs PySCF
A side-by-side editorial comparison of Distributions.jl and PySCF — release velocity, themes, recent moves, and the top alternatives to consider.
Distributions.jl vs PySCF: at a glance
What is Distributions.jl?
Julia's distribution library grinds forward one distribution at a time
Distributions.jl ships small, frequent releases against a large and settled API surface. Recent work splits between correctness fixes to individual distributions (LogitNormal formulas, Semicircle quantiles, Truncated Chernoff), incremental fitting support such as sufficient statistics and MLE for Chi and Chisq, and infrastructure moves like more consistent error types and global sparsity tracing through constructors.
What is PySCF?
Quantum chemistry package adding whole method families every release.
PySCF is a Python-based quantum chemistry toolkit, and its release cadence is unusually feature-dense: each version lands multiple new electronic-structure methods rather than polishing existing ones. Recent releases have built out the GW/BSE excited-state stack, k-point RPA for periodic systems, higher-order coupled cluster, and multi-state PDFT with analytical gradients. Platform work runs alongside — Windows DLL compatibility, GPU4PySCF interfacing, and configurable einsum backends.
Distributions.jl vs PySCF: editorial side-by-side
Distributions.jl
2.5ANALYTICS
Julia's distribution library grinds forward one distribution at a time
◆ Current state
Distributions.jl ships small, frequent releases against a large and settled API surface. Recent work splits between correctness fixes to individual distributions (LogitNormal formulas, Semicircle quantiles, Truncated Chernoff), incremental fitting support such as sufficient statistics and MLE for Chi and Chisq, and infrastructure moves like more consistent error types and global sparsity tracing through constructors.
◆ Where it's heading
The arc is consolidation rather than expansion: dependencies are being pruned and internals made more predictable so the package composes cleanly with the rest of the Julia numerical stack. Support for sparsity tracing and looser MvNormal type aliases both point at making the library easier to drive from automatic-differentiation and optimization code.
◆ Prediction
Expect the same cadence of per-distribution fixes and fitting-method additions, with continued work on making constructors transparent to tracing and AD tooling. Nothing in these entries signals a major version or API break.
PySCF
2.5ANALYTICS
Quantum chemistry package adding whole method families every release.
◆ Current state
PySCF is a Python-based quantum chemistry toolkit, and its release cadence is unusually feature-dense: each version lands multiple new electronic-structure methods rather than polishing existing ones. Recent releases have built out the GW/BSE excited-state stack, k-point RPA for periodic systems, higher-order coupled cluster, and multi-state PDFT with analytical gradients. Platform work runs alongside — Windows DLL compatibility, GPU4PySCF interfacing, and configurable einsum backends.
◆ Where it's heading
Two arcs are visible. The methods arc is pushing toward periodic (PBC) parity with molecular calculations — PBC GW, PBC RPA, SOC-ECP for PBC DFT, QM/MM for periodic systems all landed in this window. The infrastructure arc is about getting PySCF to run where it previously did not: Windows, GPUs, alternative tensor-contraction backends.
◆ Prediction
The PBC catch-up should continue, since each release closes another gap between molecular and periodic implementations of the same method; the entries do not indicate which gap is next.
Alternatives to Distributions.jl and PySCF
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 Distributions.jl or PySCF.
modeltime
modeltime built conformal intervals in, then went quiet on features.
performance
performance keeps adding ways to check a model you have already fitted.
cmdstanpy
CmdStanPy is clearing deprecations ahead of a 2.0 it keeps announcing.
dowhy
DoWhy adds one estimation method a year and keeps its identification edge.
OpenHouse
OpenHouse is hardening the seams where table policies and jobs quietly fail.
See all Distributions.jl alternatives → · See all PySCF alternatives →
Recent activity from Distributions.jl and PySCF
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 16d agoDistributions.jlLogitNormal comment fix and doc typo cleanup
- 24d agoPySCFBethe-Salpeter equation, k-point RPA, and Windows compatibility
- 1mo agoDistributions.jlLooser MvNormal and MvNormalCanon type aliases
- 1mo agoDistributions.jlTruncated Chernoff quantile and sparsity tracing fixes
- 1mo agoDistributions.jlSparsity tracing works through distribution constructors
- 2mo agoPySCFPatch release: missing CP2K basis data in wheels, ECP loading fallback
- 2mo agoDistributions.jlStatsFuns 2 upgrade and CI action bumps
- 3mo agoPySCFASE band structure interface, SOC-ECP for periodic DFT, PCM surface discretization
- 3mo agoDistributions.jlSufficient statistics and MLE for Chi and Chisq
- 6mo agoPySCFNumPy 2.4 compatibility fix and smearing convergence tweak
- 6mo agoPySCFHigh-performance CCSDT/CCSDTQ, density-fitted NEVPT2, configurable einsum backend
- 9mo agoPySCFMulti-state PDFT family lands with analytical gradients and QM/MM for periodic systems
Frequently asked questions
What is the difference between Distributions.jl and PySCF?
They serve adjacent needs but don't currently overlap on shipped themes. Distributions.jl and PySCF are shipping at a similar cadence (velocity 2.5 vs 2.5, 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 Distributions.jl better than PySCF?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Distributions.jl and PySCF are shipping at a similar cadence (velocity 2.5 vs 2.5, 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 Distributions.jl?
Top Distributions.jl alternatives in Analytics are ranked by recent ship velocity. Browse the "Distributions.jl alternatives" section above for the current picks, or visit /alternatives/distributions-jl for the full list with editorial commentary on each.
What are the best alternatives to PySCF?
Top PySCF alternatives in Analytics are ranked by recent ship velocity. Browse the "PySCF alternatives" section above for the current picks, or visit /alternatives/pyscf for the full list with editorial commentary on each.