Knowledge Quiz: Add-On Packages

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Which of the following commands will install the lavaan package from CRAN?

library(lavaan)install.packages("dplyr", repos = "https://cloud.r-project.org")ls(lavaan)help(lavaan)install.packages("lavaan", lib = "~/R/my_packages/")

• Wrong: Loading the package, not installing
• Wrong: Installing dplyr
• Wrong: This is a misuse of the ls() function
• Wrong: Accessing the help file for the lavaan() function
• Correct: Installing from CRAN, but installing into a non-standard library location