trafo_back: Back-transforms vectors with used transformation in trafo_lm

In akreutzmann/trafo: Estimation, Comparison and Selection of Transformations

Description

The function transforms vectors as the prediction or confidence intervals naively back to the original scale of the used transformation in trafo_lm.

Usage

trafo_back(object, prediction)

Arguments

object	an object of type trafo_lm.
prediction	the return of the predict.lm method.

Value

The backtransformed prediction.

Examples

# Load data
data("cars", package = "datasets")

# Fit linear model
lm_cars <- lm(dist ~ speed, data = cars)

# Compare untransformed and transformed model
trafo_cars <- trafo_lm(object = lm_cars, trafo = "bickeldoksum", method = "skew", 
lambdarange = c(1e-11, 2))

# Back-transform prediction and confidence interval
trafo_back(trafo_cars, predict(trafo_cars$trafo_mod, interval = "confidence"))

akreutzmann/trafo documentation built on Sept. 14, 2020, 9:03 p.m.