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To cite pssmooth in publications use:

Juraska M (2026). pssmooth: Flexible and Efficient Evaluation of Principal Surrogates/Treatment Effect Modifiers. R package version 1.0.4, https://CRAN.R-project.org/package=pssmooth.

Corresponding BibTeX entry: 

  @Manual{,
    title = {pssmooth: Flexible and Efficient Evaluation of Principal
      Surrogates/Treatment Effect Modifiers},
    author = {Michal Juraska},
    year = {2026},
    note = {R package version 1.0.4},
    url = {https://CRAN.R-project.org/package=pssmooth},
  }

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.