This function uses dplyr::mutate() to create a new na_flag logical
variable with TRUE values for any record missing any value in the
selected columns.
flag_na(data, ...)A data frame to flag.
Arguments passed to dplyr::select() (needs to be at least
dplyr::everything()).
A data frame with a new na_flag logical variable.
flag_na(dplyr::starwars, hair_color)
#> # A tibble: 87 × 15
#> name height mass hair_color skin_color eye_color birth_year sex gender
#> <chr> <int> <dbl> <chr> <chr> <chr> <dbl> <chr> <chr>
#> 1 Luke Sk… 172 77 blond fair blue 19 male mascu…
#> 2 C-3PO 167 75 NA gold yellow 112 none mascu…
#> 3 R2-D2 96 32 NA white, bl… red 33 none mascu…
#> 4 Darth V… 202 136 none white yellow 41.9 male mascu…
#> 5 Leia Or… 150 49 brown light brown 19 fema… femin…
#> 6 Owen La… 178 120 brown, gr… light blue 52 male mascu…
#> 7 Beru Wh… 165 75 brown light blue 47 fema… femin…
#> 8 R5-D4 97 32 NA white, red red NA none mascu…
#> 9 Biggs D… 183 84 black light brown 24 male mascu…
#> 10 Obi-Wan… 182 77 auburn, w… fair blue-gray 57 male mascu…
#> # ℹ 77 more rows
#> # ℹ 6 more variables: homeworld <chr>, species <chr>, films <list>,
#> # vehicles <list>, starships <list>, na_flag <lgl>