drop_na in RStudio

Question

I am unable to run the following on RStudio penguins %>% group_by(island) %>% drop_na(.) %>% summarise(mean_bill_length_mm = mean(bill_length_mm)) The error coming up is Error in drop_na(.) : could not find function "drop_na" What do I have to do to fix this?

Answer 1

You can use this code:

library(palmerpenguins)
library(tidyverse)
penguins %>% group_by(island) %>% drop_na(.) %>% summarise(mean_bill_length_mm = mean(bill_length_mm))

Output:

# A tibble: 3 × 2
  island    mean_bill_length_mm
  <fct>                   <dbl>
1 Biscoe                   45.2
2 Dream                    44.2
3 Torgersen                39.0