trafos: Transformation methods.

In pday2/mlrMBO_mP: Bayesian Optimization and Model-Based Optimization of Expensive Black-Box Functions

Description

• logTrafo
  Natural logarithm.

• sqrtTrafo
  Square root.

If negative values occur and the trafo function can handle only positive values, a shift of the form x - min(x) + 1 is performed prior to the transformation if the argument handle.violations is set to “warn” which is the default value.

Usage

trafoLog(base = 10, handle.violations = "warn")

trafoSqrt(handle.violations = "warn")

Arguments

base	[numeric(1)] The base with respect to which logarithms are computed. Default is 10.
handle.violations	[character(1)] What should be done, if negative values occur? Setting this option to “warn”, which is the default, shifts the function. “error” stops the process immediately.

Format

None

pday2/mlrMBO_mP documentation built on July 21, 2020, 12:16 a.m.