gps2gtfs
gps2gtfs spent a release making its docs stop describing functions it does not have.
Comparison · Analytics
glyparse vs ibdsim2
A side-by-side editorial comparison of glyparse and ibdsim2 — release velocity, themes, recent moves, and the top alternatives to consider.
glyparse vs ibdsim2: at a glance
What is glyparse?
glyparse is quietly becoming the universal reader for glycan text notation.
glyparse converts the various text encodings of glycan structures into glyrepr objects. Version 0.7.0 was the widest release in the window, adding parsers for GlyCAM IUPAC, IUPAC-compact, KCF, and LINUCS and teaching auto_parse() to route them, alongside a long list of GlycoCT and WURCS edge cases. The rest of the window is error-handling and performance work: an on_failure switch, a 10-30x speedup on large inputs, and NA and name preservation.
What is ibdsim2?
A pedigree IBD simulator that absorbed its own web app and now optimises for dense marker panels.
ibdsim2 simulates identity-by-descent sharing along chromosomes for arbitrary pedigrees, in both autosomal and X-chromosomal form, with downstream tools for segment statistics, pattern finding and distribution plots. Since 2.1.0 the Shiny front end lives inside the package and launches via launchApp() rather than sitting in a separate repository. The latest release is performance work, with profileSimIBD() substantially sped up for dense marker panels and ibdsim() skipping recombination in pedigree branches that cannot affect the result.
glyparse vs ibdsim2: editorial side-by-side
glyparse
0.0ANALYTICS
glyparse is quietly becoming the universal reader for glycan text notation.
◆ Current state
glyparse converts the various text encodings of glycan structures into glyrepr objects. Version 0.7.0 was the widest release in the window, adding parsers for GlyCAM IUPAC, IUPAC-compact, KCF, and LINUCS and teaching auto_parse() to route them, alongside a long list of GlycoCT and WURCS edge cases. The rest of the window is error-handling and performance work: an on_failure switch, a 10-30x speedup on large inputs, and NA and name preservation.
◆ Where it's heading
Two things are being built at once. Coverage keeps widening, both in the number of notations supported and in how much malformed or ambiguous real-world input each parser tolerates: alditol residues, unknown ring positions, ambiguous sialic acid descriptors, uppercase residue IDs. Meanwhile the package is hardening for batch use, with progress bars, vectorized speed, and a choice between erroring and returning NA on unparsable strings.
◆ Prediction
With the major notations now covered, expect further releases to go to robustness on messy inputs and to keeping pace with glyrepr's structure representation rather than adding formats.
ibdsim2
2.5ANALYTICS
A pedigree IBD simulator that absorbed its own web app and now optimises for dense marker panels.
◆ Current state
ibdsim2 simulates identity-by-descent sharing along chromosomes for arbitrary pedigrees, in both autosomal and X-chromosomal form, with downstream tools for segment statistics, pattern finding and distribution plots. Since 2.1.0 the Shiny front end lives inside the package and launches via launchApp() rather than sitting in a separate repository. The latest release is performance work, with profileSimIBD() substantially sped up for dense marker panels and ibdsim() skipping recombination in pedigree branches that cannot affect the result.
◆ Where it's heading
Two long-running threads. One is the app as a first-class part of the package, which has been getting input validation, dependency checks and plotting fixes release after release, treating a research GUI as software to be maintained rather than a demo. The other is numerical care: the built-in recombination map was rebuilt in 2.3.0 with better chromosome endpoints and a thinning algorithm that cut it from about 38,000 points to 14,000 without losing accuracy, and IBD segment merging has been made consistent across the realised-coefficient functions. The maintainer flags repeatedly that seeded results may differ across versions, which is the right disclosure for a simulator used in published analyses.
◆ Prediction
The recent work points at further speed on dense panels and continued hardening of app input handling, both of which have appeared in each of the last several releases. Nothing here signals a new modelling capability on the way.
Alternatives to glyparse and ibdsim2
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 glyparse or ibdsim2.
ducksemantics
ducksemantics puts an ontology graph and ColBERT retrieval inside DuckDB, callable from R.
dvir
dvir keeps making disaster victim identification a single call instead of a workflow.
pedbuildr
pedbuildr reconstructs pedigrees from DNA, and it just got much faster at the search.
forrel
forrel is getting faster at the simulations forensic kinship work actually spends its time on.
pedFamilias
pedFamilias exists to read one legacy file format, and it has that job nearly finished.
See all glyparse alternatives → · See all ibdsim2 alternatives →
Recent activity from glyparse and ibdsim2
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 11d agoibdsim2profileSimIBD() sped up for dense marker panels; segment merging fixed
- 1mo agoglyparseParser output uses glyrepr's public constructor
- 1mo agoglyparseFour new notations parsed and auto-detected
- 1mo agoglyparseWURCS and GlycoCT edge cases handled
- 3mo agoglyparseon_failure lets parsers return NA instead of erroring
- 5mo agoglyparseIUPAC parser accepts plain-text equivalents
- 5mo agoglyparseParsers get 10-30x faster on large inputs
- 8mo agoibdsim2Segment-distribution merge argument, and function-valued parameters
- 1y agoibdsim2Built-in decode19 recombination map rebuilt, cutting 38k points to 14k
- 1y agoibdsim2Consistent IBD segment merging across the realised-coefficient functions
- 1y agoibdsim2Built-in pedigree labels revised; extra inbred examples added
- 1y agoibdsim2The Shiny front end moves into the package and gains X-chromosomal simulation ⚡
Frequently asked questions
What is the difference between glyparse and ibdsim2?
They serve adjacent needs but don't currently overlap on shipped themes. ibdsim2 is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 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 glyparse better than ibdsim2?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. ibdsim2 is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 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 glyparse?
Top glyparse alternatives in Analytics are ranked by recent ship velocity. Browse the "glyparse alternatives" section above for the current picks, or visit /alternatives/glyparse for the full list with editorial commentary on each.
What are the best alternatives to ibdsim2?
Top ibdsim2 alternatives in Analytics are ranked by recent ship velocity. Browse the "ibdsim2 alternatives" section above for the current picks, or visit /alternatives/ibdsim2 for the full list with editorial commentary on each.