simlandr
Potential landscape tooling settling onto standard R generics after two rounds of renaming.
Comparison · Analytics
rmediation vs stringx
A side-by-side editorial comparison of rmediation and stringx — release velocity, themes, recent moves, and the top alternatives to consider.
rmediation vs stringx: at a glance
What is rmediation?
RMediation shipped a three-normal CDF, then found it was silently wrong.
RMediation is a long-standing CRAN package for confidence intervals on mediated effects, now built on an S7 class hierarchy. Over eight weeks it added ProductNormal3 for serial indirect effects of the form a1*a2*b, folded the engine into the existing pprodnormal naming family, and then replaced that engine outright after finding it returned wrong probabilities without warning. The dev branch is at 1.7.0; CRAN still serves 1.6.1.
What is stringx?
A drop-in string API for base R, kept alive by upstream check failures.
stringx reimplements base R's string and date-time functions on top of stringi, aiming for consistent and Unicode-correct behaviour. The visible window holds one behavioural change and five releases that exist because R or stringi moved underneath it. None of the recent notes add capability.
rmediation vs stringx: editorial side-by-side
rmediation
3.8ANALYTICS
RMediation shipped a three-normal CDF, then found it was silently wrong.
◆ Current state
RMediation is a long-standing CRAN package for confidence intervals on mediated effects, now built on an S7 class hierarchy. Over eight weeks it added ProductNormal3 for serial indirect effects of the form a1*a2*b, folded the engine into the existing pprodnormal naming family, and then replaced that engine outright after finding it returned wrong probabilities without warning. The dev branch is at 1.7.0; CRAN still serves 1.6.1.
◆ Where it's heading
The package is moving from a hand-rolled numerical layer to one that checks itself: the new default integrator escalates its node count until successive rules agree, warns when it hits the cap instead of returning a number, and exposes a diagnostics argument for the convergence estimate. The correctness fix went to dev ahead of the CRAN window rather than being held for it, which suggests wrong-answer bugs are treated as release-blocking regardless of cadence. Serial mediation is where the new surface area is concentrated.
◆ Prediction
1.7.0 exists specifically to land before CRAN's 2026-08-21 update window, so the next move is a CRAN submission promoting it to main; whether hcubature survives past that as a cross-check option is the open question.
stringx
0.0ANALYTICS
A drop-in string API for base R, kept alive by upstream check failures.
◆ Current state
stringx reimplements base R's string and date-time functions on top of stringi, aiming for consistent and Unicode-correct behaviour. The visible window holds one behavioural change and five releases that exist because R or stringi moved underneath it. None of the recent notes add capability.
◆ Where it's heading
The package's shape was settled by 0.2.1 and has not changed since; every release in the past three years is either a check failure fixed or a POSIXxt defect. The one substantive note, 0.2.6, records a behaviour change inherited from stringi rather than chosen here - strptime now fills missing fields from today's midnight. That dependence is the defining fact about the feed.
◆ Prediction
The next release is most likely another compatibility fix timed to an R or stringi update, since four of the six visible releases were exactly that.
Alternatives to rmediation and stringx
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 rmediation or stringx.
lavaanExtra
SEM reporting helpers converging on APA output, one CRAN resubmission at a time.
ibis.iSDM
A raster-to-terra migration is the only readable change in a feed of merge notes.
anyflights
A nycflights13 generator whose recent work is all about the data being right.
vinereg
Conditional density and log-likelihood fill out a vine copula regression package.
healthyR.data
From a bundled hospital dataset to a live CMS API client.
See all rmediation alternatives → · See all stringx alternatives →
Recent activity from rmediation and stringx
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 16h agormediationv1.7.0 — pprodnormal3() correctness fix ⚡
- 1mo agormediationp_prod3() renamed into the pprodnormal family
- 1mo agormediationProductNormal3: exact CDF for a product of three normals ⚡
- 2mo agormediationmedfit reaches CRAN; Remotes pointer dropped
- 1y agostringxPOSIXlt conversion now sets the GMT offset
- 2y agostringxTests repaired after changes in R
- 2y agostringxstrptime fills missing fields from today's midnight
- 3y agostringxChecks repaired after an R update
- 3y agostringxChecks repaired after an R-devel change
- 3y agostringxFailing checks fixed
Frequently asked questions
What is the difference between rmediation and stringx?
They serve adjacent needs but don't currently overlap on shipped themes. rmediation 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 rmediation better than stringx?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. rmediation 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 Analytics products to evaluate alongside.
What are the best alternatives to rmediation?
Top rmediation alternatives in Analytics are ranked by recent ship velocity. Browse the "rmediation alternatives" section above for the current picks, or visit /alternatives/rmediation for the full list with editorial commentary on each.
What are the best alternatives to stringx?
Top stringx alternatives in Analytics are ranked by recent ship velocity. Browse the "stringx alternatives" section above for the current picks, or visit /alternatives/stringx for the full list with editorial commentary on each.