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To cite demofit in publications:

Li J (2026). demofit: Parametric Mortality Curve Fitting and Mortality Forecasting Tools. R package version 0.1.2, https://CRAN.R-project.org/package=demofit.

Corresponding BibTeX entry: 

  @Manual{Li2026demofit,
    title = {demofit: Parametric Mortality Curve Fitting and Mortality
      Forecasting Tools},
    author = {Jackie Li},
    year = {2026},
    note = {R package version 0.1.2},
    url = {https://CRAN.R-project.org/package=demofit},
  }

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.