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posterior vs rvest

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

posterior vs rvest: at a glance

Featureposteriorrvest
SectorAnalyticsAnalytics
Velocity score0.00.0
Sparks · 30d00
Top themesbayesian, rvar, pareto-diagnostics, r-infrastructurer, web-scraping, html-parsing, headless-browser
Last editorial update54m ago7h ago
WebsiteVisit →Visit →

What is posterior?

posterior keeps deepening two things: the rvar type and Pareto-based diagnostics.

The releases in this window advance on two fronts. The rvar random-variable type gained factor and ordered subtypes (1.4.0), rvar-indexed slicing and `rvar_ifelse()` (1.5.0), base `%*%` matrix multiplication and indexed variable names (1.6.0). Separately, Pareto diagnostics have grown from `pareto_smooth()` options and individual `pareto_khat()`-family functions (1.6.0) through `pit()` for draws and rvars (1.6.1) to exported generalized-Pareto functions and `pareto_pit` (1.7.0). 1.7.1 is a paperwork release for a JOSS submission.

Read the full posterior trajectory →

What is rvest?

rvest grew a real browser, turning a static scraper into a dynamic one.

rvest is the tidyverse's HTML scraping package. The 1.0.0 line rebuilt table parsing to mimic how browsers actually read tables, and 1.0.4 added read_html_live(), which drives a headless browser so JavaScript-rendered pages can be scraped at all. 1.0.5 is consolidation on that newer path.

Read the full rvest trajectory →

posterior vs rvest: editorial side-by-side

P
posterior
ANALYTICS
0.0

posterior keeps deepening two things: the rvar type and Pareto-based diagnostics.

◆ Current state

The releases in this window advance on two fronts. The rvar random-variable type gained factor and ordered subtypes (1.4.0), rvar-indexed slicing and `rvar_ifelse()` (1.5.0), base `%*%` matrix multiplication and indexed variable names (1.6.0). Separately, Pareto diagnostics have grown from `pareto_smooth()` options and individual `pareto_khat()`-family functions (1.6.0) through `pit()` for draws and rvars (1.6.1) to exported generalized-Pareto functions and `pareto_pit` (1.7.0). 1.7.1 is a paperwork release for a JOSS submission.

◆ Where it's heading

posterior is positioning itself as shared infrastructure rather than an end-user package: 1.7.0 explicitly exports generalized-Pareto machinery 'for use in other packages', and the JOSS paper is a citation vehicle for the same audience. The rvar work points the same way — a random-variable type other Bayesian packages can build on. Cadence is steady but unhurried, roughly one feature release a year.

◆ Prediction

More diagnostic functions are likely to be exported for downstream reuse, following the pattern 1.7.0 established with the generalized-Pareto helpers.

R
rvest
ANALYTICS
0.0

rvest grew a real browser, turning a static scraper into a dynamic one.

◆ Current state

rvest is the tidyverse's HTML scraping package. The 1.0.0 line rebuilt table parsing to mimic how browsers actually read tables, and 1.0.4 added read_html_live(), which drives a headless browser so JavaScript-rendered pages can be scraped at all. 1.0.5 is consolidation on that newer path.

◆ Where it's heading

The package has split into two modes: fast static parsing for ordinary documents, and a live browser session for client-rendered ones. Recent effort concentrates on hardening the live path, where page navigation and interaction bugs surface that never existed in static parsing.

◆ Prediction

Expect further fixes and documentation around read_html_live() as more scraping targets move rendering to the client.

Alternatives to posterior and rvest

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 posterior or rvest.

See all posterior alternatives → · See all rvest alternatives →

Recent activity from posterior and rvest

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

  1. 2mo agoposteriorposterior 1.7.1 released for JOSS paper
  2. 3mo agoposteriorposterior 1.7.0 exports generalized-Pareto functions
  3. 10mo agoposteriorposterior 1.6.1 adds pit() for draws and rvars
  4. 11mo agorvestrvest 1.0.5 fixes stale nodes after click navigation in LiveHTML
  5. 1y agoposteriorposterior 1.6.0 adds Pareto diagnostics and ESS-based thinning
  6. 2y agorvestrvest 1.0.4 scrapes JavaScript pages via a live browser session
  7. 2y agoposteriorposterior 1.5.0 adds nested-Rhat and rvar indexing
  8. 3y agoposteriorposterior 1.4.0 adds factor and ordered rvar subtypes
  9. 3y agorvestrvest 1.0.3 re-documents to fix .Rd HTML issues
  10. 4y agorvestrvest 1.0.2 returns empty tibbles for empty tables
  11. 5y agorvestrvest 1.0.1 parses blank rowspan and colspan as 1
  12. 5y agorvestrvest 1.0.0 rewrites table parsing to match browser behaviour

Frequently asked questions

What is the difference between posterior and rvest?

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

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

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

What are the best alternatives to rvest?

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