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Comparison · Infra & APIs
contagionchannels vs phyloatlas
A side-by-side editorial comparison of contagionchannels and phyloatlas — release velocity, themes, recent moves, and the top alternatives to consider.
contagionchannels vs phyloatlas: at a glance
What is contagionchannels?
Three releases in ten days, every one of them a CRAN reviewer's correction rather than a code change.
contagionchannels reached CRAN on 2026-05-08 with a methodology preprint behind it and a cross-quantilogram lineage visible in its citations. What the release feed does not contain is any description of what the package computes: all three entries document the submission process — a licence field reduced from GPL-3 plus file to plain GPL-3, an arXiv reference rewritten in canonical DOI form, and a base-graphics fallback adjusted on a reviewer's request.
What is phyloatlas?
An atlas of the tree of life that keeps publishing what it got wrong, and stopped shipping the trees it does not own.
This is a curated deposit of species-level phylogenies — 264 trees across 62 partitions, 247 of them time-calibrated — paired with a species-name dictionary of roughly 638,000 standardized labels and per-tree provenance. It is moving through peer review at Methods in Ecology and Evolution, and the release stream is essentially a public erratum log: eight releases in five weeks, each reconciling the deposit against source papers, the manuscript, and its own metadata. The most recent replaced the turtle canonical with a 274-tip ultrametric chronogram after the previous tree failed time-calibration integrity checks.
contagionchannels vs phyloatlas: editorial side-by-side
contagionchannels
0.0INFRA · APIS
Three releases in ten days, every one of them a CRAN reviewer's correction rather than a code change.
◆ Current state
contagionchannels reached CRAN on 2026-05-08 with a methodology preprint behind it and a cross-quantilogram lineage visible in its citations. What the release feed does not contain is any description of what the package computes: all three entries document the submission process — a licence field reduced from GPL-3 plus file to plain GPL-3, an arXiv reference rewritten in canonical DOI form, and a base-graphics fallback adjusted on a reviewer's request.
◆ Where it's heading
There is no product trajectory to read here yet, only a submission one, and it is unusually well documented — each entry names the reviewer or check that prompted it and quotes the feedback verbatim. That transparency is the one signal available: the maintainer treats review rounds as releases worth publishing rather than squashing. Any judgement about direction will have to wait for a release that changes the package rather than its metadata.
◆ Prediction
With CRAN acceptance secured, the next release should be the first to carry actual methodological content; until one appears, there is not enough in these entries to say where the package is heading.
phyloatlas
0.0INFRA · APIS
An atlas of the tree of life that keeps publishing what it got wrong, and stopped shipping the trees it does not own.
◆ Current state
This is a curated deposit of species-level phylogenies — 264 trees across 62 partitions, 247 of them time-calibrated — paired with a species-name dictionary of roughly 638,000 standardized labels and per-tree provenance. It is moving through peer review at Methods in Ecology and Evolution, and the release stream is essentially a public erratum log: eight releases in five weeks, each reconciling the deposit against source papers, the manuscript, and its own metadata. The most recent replaced the turtle canonical with a 274-tip ultrametric chronogram after the previous tree failed time-calibration integrity checks.
◆ Where it's heading
The project's defining decision is that it archives the recipe rather than the corpus. Since 1.0.3 the Zenodo deposit holds metadata, provenance, and standardization code while the tree files live at their original sources, and the same principle was applied again when the TimeTree-of-Life was removed at the TimeTree project's request and reduced to a citation. What makes the correction log unusual is its direction: partitions keep getting reclassified from dated to undated as verification confirms the source papers described chronograms they never deposited. The atlas is being built to be honest about archival uncertainty rather than to maximize coverage.
◆ Prediction
The release cadence is driven by the manuscript review cycle, so expect corrections to continue until MEE acceptance and then slow sharply; the open thread most likely to produce the next one is the remaining recoverable archival uncertainty flagged across non-Condamine dated source trees.
Alternatives to contagionchannels and phyloatlas
Other Infra & APIs 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 contagionchannels or phyloatlas.
WPML
WPML made machine translation the default, and its point releases keep chasing WordPress and page builders.
forestploter
A forest plot package that keeps handing users control of one more graphical detail.
ggInterval
Interval-valued data plotting, spending 2026 making its function names and examples survive CRAN.
rgm
A microbiome network model that got itself un-archived by deleting the dependency that killed it.
tidyaudit
Pipeline provenance for tidyverse workflows, recording what changed at each step without keeping the data.
See all contagionchannels alternatives → · See all phyloatlas alternatives →
Recent activity from contagionchannels and phyloatlas
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1mo agophyloatlasv1.0.8 — turtle chronogram canonical; MEE integrity pass
- 1mo agophyloatlasv1.0.7 — restore species-name dictionary
- 1mo agophyloatlasv1.0.6 — data-integrity corrections + TimeTree de-redistribution
- 2mo agophyloatlasv1.0.5 — consistency corrections
- 2mo agophyloatlasv1.0.4 — data corrections + canonical succession (Supplementary Table S7)
- 2mo agophyloatlasv1.0.3 — title alignment, LICENSE, three-category framework, sensitivity bounds ⚡
- 3mo agocontagionchannelsv0.1.3 — first CRAN release
- 3mo agocontagionchannelsv0.1.2: switch arXiv reference in DESCRIPTION to canonical DOI form
- 3mo agocontagionchannelsv0.1.1: address CRAN reviewer feedback (License) + add arXiv reference
Frequently asked questions
What is the difference between contagionchannels and phyloatlas?
They serve adjacent needs but don't currently overlap on shipped themes. contagionchannels and phyloatlas 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 contagionchannels better than phyloatlas?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. contagionchannels and phyloatlas 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 Infra & APIs products to evaluate alongside.
What are the best alternatives to contagionchannels?
Top contagionchannels alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "contagionchannels alternatives" section above for the current picks, or visit /alternatives/contagionchannels for the full list with editorial commentary on each.
What are the best alternatives to phyloatlas?
Top phyloatlas alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "phyloatlas alternatives" section above for the current picks, or visit /alternatives/phylo-species-atlas for the full list with editorial commentary on each.