This function can be used to create a proper trans object that encapsulates a power transformation (x^n).
power_trans(n)Arguments
- n
The degree of the power transformation
Value
A trans object
Examples
# Power of 2 transformations
trans <- power_trans(2)
trans$transform(1:10)
#> [1] 1 4 9 16 25 36 49 64 81 100
# Cubic root transformation
trans <- power_trans(1 / 3)
trans$transform(1:10)
#> [1] 1.000000 1.259921 1.442250 1.587401 1.709976 1.817121 1.912931 2.000000
#> [9] 2.080084 2.154435
# Use it in a plot
ggplot() +
geom_line(aes(x = 1:10, y = 1:10)) +
scale_x_continuous(trans = power_trans(2),
expand = c(0, 1))
