realisticDF: Realistic desirability functions
Description
Convert a desirability into a realistic desirability.
Usage
realisticDF(f, ...)
"realisticDF"(f, ...)
Value
A function with the same arguments as x and sd, which
returns the realistic desirability.
Details
To construct a composite realistic desirability, first create a
realistic desirability and then compose it. Doing the opposite is
currently unsupported. This allows the composition to possibly pass a
standard deviation which can be deduced from the inner function
(eg. if the inner function is an object of class lm).