Builds and runs 'c++' code for classes that encapsulate state space model, particle filtering algorithm pairs.
    Algorithms include the Bootstrap Filter from Gordon et al. (1993) <doi:10.1049/ip-f-2.1993.0015>, the generic SISR filter, 
    the Auxiliary Particle Filter from Pitt et al (1999) <doi:10.2307/2670179>, and a variety of Rao-Blackwellized 
    particle filters inspired by Andrieu et al. (2002) <doi:10.1111/1467-9868.00363>. For more details on the 'c++' library 
    'pf', see Brown (2020) <doi:10.21105/joss.02599>.

Computes predicted values and lower/upper limits of normal
    for pulmonary function tests according to American Thoracic Society
    ('ATS') and European Respiratory Society ('ERS') reference
    standards. Supports spirometry (Global Lung Function Initiative
    'GLI' 2012, Quanjer et al. (2012) <doi:10.1183/09031936.00080312>;
    and the race-neutral 'GLI' 2022 / 'GLI Global' equations, Bowerman
    et al. (2023) <doi:10.1164/rccm.202205-0963OC>), static lung
    volumes ('GLI' 2021, Hall et al. (2021)
    <doi:10.1183/13993003.00289-2020>), and the carbon monoxide
    transfer factor / diffusion capacity ('GLI' 2017, Stanojevic et al.
    (2017) <doi:10.1183/13993003.00010-2017>, including the 2020
    author correction <doi:10.1183/13993003.50010-2017>). Also assigns
    interpretive pattern labels (Normal, Non-specific, Obstructed,
    Restricted, Mixed) from spirometry and lung-volume measurements
    following the 'ERS'/'ATS' 2022 interpretation algorithm,
    Stanojevic et al. (2022) <doi:10.1183/13993003.01499-2021>.

Provides tools to import, clean, filter, and prepare Project
    FeederWatch data for analysis. Includes functions for taxonomic
    rollup, easy filtering, zerofilling, merging in site metadata, and more.
    Project FeederWatch data comes from 
    <https://feederwatch.org/explore/raw-dataset-requests/>.

R tools for reconstructing paleo food webs from species traits and size rules.

Provides access to a high performant random distribution
    sampler for the Polya Gamma Distribution using either 'C++' headers for 
    'Rcpp' or 'RcppArmadillo' and 'R'.