lidaRtRee (version 4.0.8)

boxcox_itr: Inverse Box-Cox transformation

Description

Inverse Box-Cox transformation

Usage

boxcox_itr(x, lambda)

Value

a vector or raster of transformed values

Arguments

x

vector or raster values to be transformed

lambda

numeric. parameter of Box-Cox transformation

See Also

boxcox_tr Box-Cox transformation, boxcox_itr_bias_cor inverse Box-Cox transformation with bias correction.

Examples

x <- 1:10
boxcox_itr(x, 0)
boxcox_itr(x, 0.5)
boxcox_itr(x, 2)
boxcox_itr(boxcox_tr(x, 2), 2)

# plot functions
curve(boxcox_itr(x, 0), 0, 3,
  col = "blue", main = "inverse Box Cox transf.",
  xlab = "x", ylab = "inverse Boxcox(x, lambda)"
)
curve(boxcox_itr(x, 1.5), 0, 3, col = "red", add = TRUE)
curve(boxcox_itr(x, 0.5), 0, 3, col = "black", add = TRUE)
curve(boxcox_itr(x, 1), 0, 3, col = "pink", add = TRUE)
legend("topleft",
  legend = c("lambda", 0, 0.5, 1, 1.5),
  col = c(NA, "blue", "black", "pink", "red"), lty = 1
)