Vocabulary

Can think of cement() and paste() as being ‘mirror-images’ of each other.

• paste() - define what to quote - Evaluates arguments
• cement() - define what to unquote - Quotes arguments

Quoting function similar to, but more precise than, Non-standard evaluation (NSE)

• Tidyverse functions - e.g., dplyr::mutate(), tidyr::pivot_longer()
• Base functions - e.g., library(), subset(), with()

Quoting function arguments cannot be evaluated outside of function:

cement(Good, afternoon, Cohort) # No problem
#> [1] "Good afternoon Cohort"
Good      # Error!
#> Error: object 'Good' not found

Non-quoting (standard) function arguments can be evaluated:

paste("Good", "afternoon", "Cohort")
#> [1] "Good afternoon Cohort"
"Good"
#> [1] "Good"