Package: SynthesizerPlus
Type: Package
Title: Synthetic Data Generation with Copulas, Evaluation and
        Multi-Format I/O
Version: 0.2.9
Authors@R: 
    person("Bogdan", "Oancea", email = "bogdan.oancea@gmail.com",
           role = c("aut", "cre", "cph"))
Description: Generates synthetic versions of numeric, categorical, mixed-type
    and time-series data. Marginal distributions are modelled with
    interpolated empirical quantile functions and dependence with Gaussian or
    Student-t copulas (Sklar, 1959). Discrete and categorical variables enter
    the copula through the distributional transform (Ruschendorf, 2009,
    <doi:10.1016/j.jspi.2009.05.030>), and their latent correlations are
    estimated by maximum likelihood as polychoric (Olsson, 1979,
    <doi:10.1007/BF02296207>) and polyserial (Olsson, Drasgow and Dorans,
    1982, <doi:10.1007/BF02294164>) correlations. Missing values are
    modelled by missingness indicators inside the copula, so that
    missingness may depend on other variables. Supports stratified models,
    a closeness parameter with calibration to a target distance or
    disclosure-risk level, chunked generation of very large data sets,
    copula vector-autoregressive and bootstrap time-series synthesis,
    augmentation of small training sets for machine learning, and random
    generation from multivariate distributions and elliptical and
    Archimedean copulas. Fidelity, utility and disclosure risk are assessed
    with marginal distances, association matrices, propensity score
    mean-squared error (Snoke et al., 2018, <doi:10.1111/rssa.12358>),
    confidence-interval overlap, correct attribution probability and
    distance to closest record, with 'ggplot2' visualisations. Data can be
    read from and written to CSV, TSV, RDS, RData, Parquet, Feather, HDF5,
    JSON, NDJSON, Excel, SPSS, Stata, SAS and fst files. The
    empirical-quantile and copula approach builds on ideas of the
    'synthesizer' package by Mark van der Loo.
License: EUPL (>= 1.2)
URL: https://github.com/bogdanoancea/SynthesizerPlus
BugReports: https://github.com/bogdanoancea/SynthesizerPlus/issues
Depends: R (>= 4.1.0)
Imports: ggplot2 (>= 3.4.0), stats, tools, utils
Suggests: arrow, data.table, fst, haven, hdf5r, jsonlite, knitr, MASS,
        nanoparquet, openxlsx, readxl, rmarkdown, rpart, testthat (>=
        3.0.0), writexl
VignetteBuilder: knitr
Config/testthat/edition: 3
Encoding: UTF-8
LazyData: true
Language: en-GB
Config/roxygen2/version: 8.1.0
NeedsCompilation: no
Packaged: 2026-10-07 07:22:59 UTC; bogdanoancea
Author: Bogdan Oancea [aut, cre, cph]
Maintainer: Bogdan Oancea <bogdan.oancea@gmail.com>
Repository: CRAN
Date/Publication: 2026-10-16 13:30:15 UTC
