betydata R data package with BETYdb public data export

[divine7022]

Summary

Initial release of betydata, an R data package providing offline access to
public data from BETYdb

• 16 datasets: traitsview (43,532 rows) + 15 reference tables
• Multiple formats: .rda (lazy-loaded), Parquet, Frictionless datapackage.json
• Filtered to public data only (access_level = 4, checked >= 0)
• Complete roxygen2 documentation for all datasets
• Package-level documentation with BETYdb context
• Data quality policy in README (checked column, access levels)

Vignettes

• orientation: Package overview and data relationships
• sql-analogs: Migrate BETYdb SQL queries to dplyr
• pfts-priors: Working with PFTs and Bayesian priors
• manuscript: Reproduce LeBauer et al. (2018) analyses

Datasets

Dataset	Description
traitsview	Primary trait/yield observations (43,532 × 36)
species	Plant taxonomy
sites	Research site locations
variables	Trait definitions and units
citations	Literature references
pfts	Plant functional types
priors	Bayesian prior distributions
+ 9 more	Support and relationship tables

implements #1, #2, #3, #4, #5, #6, #7, #8, #9, #10, #11