Convert Two Columns to a Named Vector or List

Opposite to enframe(), the function deframe() converts a two-column tibble to a named vector or list, using the first column as name and the second column as value. If the input tibble has only one column, an unnamed vector is returned.

e.g.1. Turn a two-column tibble to a named vector.

library(tibble)
a <- dplyr::band_instruments2a

Output:
# A tibble: 3 × 2
  artist plays
  <chr>  <chr>
1 John   guitar
2 Paul   bass
3 Keith  guitar

deframe(a)

Output:

John Paul Keith "guitar" "bass" "guitar"

e.g.2. Turn two-columns to a named list.

# create a tibble containing list-columnsstudents <- tibble(  Student = c("Alice", "Bob", "Charlie"),  Courses = list( c("Math", "Science", "History"),                  c("English", "Math", "Art"),                  c("Science", "History", "Geography") ),  Grades = list( c(90, 85, 80),                 c(88, 92, 85),                 c(85, 87, 90) ))students

Output:
# A tibble: 3 × 3
  Student Courses   Grades
  <chr>   <list>    <list>
1 Alice   <chr [3]> <dbl [3]>
2 Bob     <chr [3]> <dbl [3]>
3 Charlie <chr [3]> <dbl [3]>

# turn the first two columns into a named listdeframe(students[, 1:2])

Output:
$Alice
[1] "Math"    "Science" "History" $Bob
[1] "English" "Math"    "Art" $Charlie
[1] "Science"   "History"   "Geography"

# turn the second and third column to a named listdeframe(students[, 2:3])

Output:
$`c("Math", "Science", "History")`
[1] 90 85 80 $`c("English", "Math", "Art")`
[1] 88 92 85 $`c("Science", "History", "Geography")`
[1] 85 87 90

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