methods, mvQuad, matrixStats, Matrix, stringr, magrittr,
dplyr, tidyr, tidyselect, rlang, polynom, tibble, purrr
methods, mvQuad, Matrix, rlang, polynom, splines, numDeriv
trustOptim, trust, numDeriv, testthat (>= 2.1.0), knitr,
rmarkdown, ggplot2
trustOptim, trust, numDeriv, testthat (>= 2.1.0), knitr,
rmarkdown
trustOptim, trust, testthat (>= 2.1.0), parallel