Dealing with the missing data

read_excel(
  "data/students.xlsx",
  col_names = c("student_id", "full_name", "favourite_food", "meal_plan", "age"),
  skip = 1,
  na = c("", "N/A")
)

## # A tibble: 6 × 5
##   student_id full_name        favourite_food     meal_plan           age  
##        <dbl> <chr>            <chr>              <chr>               <chr>
## 1          1 Sunil Huffmann   Strawberry yoghurt Lunch only          4    
## 2          2 Barclay Lynn     French fries       Lunch only          5    
## 3          3 Jayendra Lyne    <NA>               Breakfast and lunch 7    
## 4          4 Leon Rossini     Anchovies          Lunch only          <NA> 
## 5          5 Chidiegwu Dunkel Pizza              Breakfast and lunch five 
## 6          6 Güvenç Attila    Ice cream          Lunch only          6