It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.
0.3.6 by Timothy Beechey, a month ago
https://github.com/timbeechey/opa
Report a bug at https://github.com/timbeechey/opa/issues
Browse source code at https://github.com/cran/opa
Authors: Timothy Beechey [aut, cre]
Documentation: PDF Manual
GPL (>= 3) license
Imports Rcpp, ggplot2
Suggests rmarkdown, knitr, testthat
Linking to cpp11, Rcpp
System requirements: C++11
See at CRAN