Provides a set of functions to facilitate building formatted strings
    under various replacement rules: C-style formatting, variable-based formatting,
    and number-based formatting. C-style formatting is basically identical to built-in
    function 'sprintf'. Variable-based formatting allows users to put variable names
    in a formatted string which will be replaced by variable values. Number-based
    formatting allows users to use index numbers to represent the corresponding
    argument value to appear in the string.

Bayes estimation of probit choice models in cross-sectional and panel 
    settings. The package can analyze binary, multivariate, ordered, and ranked 
    choices, as well as heterogeneity of choice behavior among deciders. The 
    main functionality includes model fitting via Gibbs sampling, tools for 
    convergence  diagnostic, choice data simulation, in-sample and out-of-sample 
    choice prediction, and model selection using information criteria and Bayes 
    factors. The latent class model extension facilitates preference-based 
    decider classification, where the number of latent classes can be inferred 
    via the Dirichlet process or a weight-based updating heuristic. This allows 
    for flexible modeling of choice behavior without the need to impose 
    structural constraints. For a reference on the method, see Oelschlaeger and 
    Bauer (2021) <https://trid.trb.org/view/1759753>.

The A() function calculates the A statistic, a nonparametric
    measure of effect size for two independent groups that’s also known as
    the probability of superiority (Ruscio, 2008), along with its standard
    error and a confidence interval constructed using bootstrap methods 
    (Ruscio & Mullen, 2012). Optional arguments can be specified to 
    calculate variants of the A statistic developed for other research 
    designs (e.g., related samples, more than two independent groups or 
    related samples; Ruscio & Gera, 2013). 
    <DOI: 10.1037/1082-989X.13.1.19>.
    <DOI: 10.1080/00273171.2012.658329>.
    <DOI: 10.1080/00273171.2012.738184>.