testthat, ggpubr, gridExtra, httr, readxl
testthat, httr, readxl, knitr, rmarkdown, quantmod, zoo, vars
testthat, httr, ggpubr, readxl, knitr, rmarkdown, quantmod,
zoo, vars
testthat, httr, readxl, knitr, rmarkdown, zoo, vars
testthat, readxl, knitr, rmarkdown, zoo, vars
testthat (>= 3.0.0), readxl, knitr, ggpubr, rmarkdown, zoo,
vars
testthat (>= 3.0.0), AER(>= 1.2-12), readxl, knitr, ggpubr,
rmarkdown, zoo, vars