Inverse transform data using a fitted preprocessing pipeline

Reverse the preprocessing transformation, converting transformed data back to the original scale. The preprocessing object must have been fitted before calling this function.

Usage

inverse_transform(object, X, ...)

Arguments

object

A fitted preprocessing object

X

A matrix or data frame of transformed data to reverse

...

Additional arguments passed to methods

Value

The data matrix in original scale

See also

fit(), fit_transform(), transform()

Examples

# Inverse transform data back to original scale
X <- matrix(rnorm(100), 10, 10)
preproc <- center()
fitted_preproc <- fit(preproc, X)
X_transformed <- transform(fitted_preproc, X)
X_reconstructed <- inverse_transform(fitted_preproc, X_transformed)

# X and X_reconstructed should be approximately equal
all.equal(X, X_reconstructed)
#> [1] TRUE