install.packages("knitr", dependencies = T) install.packages("likert", dependencies = T) install.packages("tables", dependencies = T) install.packages("corrr", dependencies = T) install.packages("corrplot", dependencies = T) install.packages("ggplot2", dependencies = T) install.packages("ggplot2", dependencies = T) install.packages("ggplot2", dependencies = T) install.packages("FactoMineR", dependencies = T) install.packages("factoextra", dependencies = T)