Introduction to R for Clinical Data Management

Introduction to the tidyverse

Code Example 1

30-45 minutes Applied Step 7 of 10

Code

Code Example 1

7 / 10

Code

Code Example 1

library(tidyverse)

enrollment_data <- tibble(
  participant_id = c("P001", "P002", "P003", "P004", "P005"),
  site = c("Kilifi", "Nairobi", "Kilifi", "Mombasa", "Nairobi"),
  age_years = c(34, 29, 41, 52, NA),
  sex = c("Female", "Male", "Female", "Male", "Female"),
  enrolled = c("Yes", "Yes", "Yes", "No", "Yes")
)

enrollment_data |>
  count(site)