For developers to check user-supplied function arguments.  It
    is designed to be simple, fast and customizable.  Error messages
    follow the tidyverse style guide.

Fit Bayesian models in Stan <doi: 10.18637/jss.v076.i01> 
  with checkpointing, that is, the ability to stop the MCMC sampler at 
  will, and then pick right back up where the MCMC sampler left off. 
  Custom 'Stan' models can be fitted, or the popular package 'brms' 
  <doi: 10.18637/jss.v080.i01> can be used to generate the 'Stan' code. This 
  package is fully compatible with the R packages 'brms', 'posterior', 'cmdstanr', 
  and 'bayesplot'.

As different antipsychotic medications have different potencies,
    the doses of different medications cannot be directly compared. Various
    strategies are used to convert doses into a common reference so that
    comparison is meaningful. Chlorpromazine (CPZ) has historically been used
    as a reference medication into which other antipsychotic doses can be
    converted, as "chlorpromazine-equivalent doses". Using conversion keys
    generated from widely-cited scientific papers, e.g. Gardner et. al 2010
    <doi:10.1176/appi.ajp.2009.09060802> and Leucht et al. 2016
    <doi:10.1093/schbul/sbv167>, antipsychotic doses are converted
    to CPZ (or any specified antipsychotic) equivalents. The use of the package
    is described in the included vignette. Not for clinical use.

An exact and a variational inference for
    coupled Hidden Markov Models applied to the joint detection of copy number variations.

Compute Chinese capital stocks in provinces level, based on Zhang (2008) <DOI:10.1080/14765280802028302>.

Threshold regression models are also called two-phase regression, broken-stick regression, split-point regression, structural change models, and regression kink models, with and without interaction terms. Methods for both continuous and discontinuous threshold models are included, but the support for the former is much greater. This package is described in Fong, Huang, Gilbert and Permar (2017) <DOI:10.1186/s12859-017-1863-x> and the package vignette.