SPATIAL-Lab/BPER: BPER v0.1.1

This release updates the d13CO2 function to use the definitive atmospheric carbon isotope proxy-system model while retaining the existing function interface and paleogeographic, temperature-offset, and GMST options. Changes include: Updated site- and archive-dependent non-secular bias formulation Updated site-by-time data aggregation while retaining sample-density weighting Corrected paleogeographic coordinate selection across supported plate models Updated handling of the Li et al. (2022) temperature offsets Updated atmospheric d13CO2 temporal-process and reference-level formulation Included the required processed datasets and a single definitive proxy-system model Made mcmcplots an optional dependency because it is no longer available from the active CRAN repository The package can be installed with: remotes::install_github("SPATIAL-Lab/BPER")