RHelpers: General R Functions

# load libraries and install them if required -----------------------------
## the script ensures the needed packages are provided

# packages || specify packages to be loaded during analysis
packages <- c("haven", "tidyverse", "drake")

# to_install || verify which packages needs to be additionally installed
to_install <- packages[!(packages %in% rownames(installed.packages()))]

## install packages
invisible(sapply(to_install, install.packages))

## load packages
invisible(sapply(packages, library, character.only = TRUE))

## clean up
rm(packages); rm(to_install)