log: Log

In cobriant/qelp: Quick Help: Beginner friendly help docs for R and the Tidyverse

Log

Description

Compute the natural logarithm of a value, or the natural log of each element of a vector.

Details

log(x, base = exp(1))

See Also

base::log2(), base::log10(), base::exp(), mutate()

Examples

# Natural log of e:

log(exp(1))

#> [1] 1

-----------------------------------

# Compute the natural log of every
# element of a vector:

c(1, 2, 3) %>% log()

#> [1] 0.0000000 0.6931472 1.0986123

-----------------------------------

# Use log() with mutate():

library(gapminder)

gapminder %>%
  select(country, year, gdpPercap) %>%
  mutate(gdp_log = log(gdpPercap))

#> # A tibble: 1,704 x 4
#>   country      year gdpPercap gdp_log
     <fct>       <int>     <dbl>   <dbl>
#> 1 Afghanistan  1952      779.    6.66
#> 2 Afghanistan  1957      821.    6.71
#> 3 Afghanistan  1962      853.    6.75

cobriant/qelp documentation built on July 1, 2022, 7:24 a.m.