trafos: Transformation methods.

Description Usage Arguments Format

Description

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

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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


mlrMBO documentation built on Jan. 13, 2021, 7:57 a.m.