mutate function in r code example
Example 1: r how to mutate
mutate(.data, ...)
# S3 method for data.frame
mutate(
.data,
...,
.keep = c("all", "used", "unused", "none"),
.before = NULL,
.after = NULL
)
Example 2: r mutate function
# Create the 'month' column
df %>%
mutate(month = str_sub(birthday,1,2))
# Create the 'day' column
df %>%
mutate(day = str_sub(birthday,3,4))
# Create the 'year' column
df %>%
mutate(year = str_sub(birthday,5))
Example 3: r mutate function
#remove %
students <- students %>%
mutate(score=gsub('\\%','',score))
Example 4: r code mutate
starwars %>%
select(name, mass, species) %>%
mutate(mass_norm = mass / mean(mass, na.rm = TRUE))