Calculate posterior modes and credible intervals of parameters of the Dixon-Simon model for subgroup analysis (with binary covariates) in clinical trials. For details of the methodology, please refer to D.O. Dixon and R. Simon (1991), Biometrics, 47: 871-881.

The D-score is a quantitative measure of child development. 
    The D-score follows the Rasch model. See Jacobusse, van Buuren and 
    Verkerk (2006) <doi:10.1002/sim.2351>. The user can convert 
    milestone scores from many assessment instruments into the D-score 
    and the DAZ (D-score adjusted for age). Several tools assist in 
    mapping milestone names into the 9-position Global Scale of Early 
    Development (GSED) convention. Supports calculation of the D-score 
    using 'dutch' <doi:10.1177/0962280212473300>, 
    'gcdg' <doi:10.1136/bmjgh-2019-001724> and 'gsed' conversion keys.
    The user can calculate DAZ using 'phase1' (default), 'gcdg' and 'dutch' 
    age-conditional references.

The models of probability density functions are Gaussian or
    exponential distributions with polynomial correction terms.
    Using a maximum likelihood method, 'dsdp' computes parameters of Gaussian
    or exponential distributions together with degrees of polynomials by
    a grid search, and coefficient of polynomials by a variant of semidefinite
    programming. It adopts Akaike Information Criterion for model selection.
    See a vignette for a tutorial and more on our 'Github' repository 
    <https://github.com/tsuchiya-lab/dsdp/>.

Applies dynamic structural equation models to time-series data
	with generic and simplified specification for simultaneous and lagged
	effects. Methods are described in Thorson et al. (2024)
	"Dynamic structural equation models synthesize ecosystem dynamics 
	constrained by ecological mechanisms."

'DataSHIELD' is an infrastructure and series of R packages that 
    enables the remote and 'non-disclosive' analysis of sensitive research data. 
    This package defines the API that is to be implemented by 'DataSHIELD' compliant 
    data repositories.