toString.function: Convert a function to a short label string
Description
gsDesignTune() uses function-valued columns (for example, spending functions)
in results tables. This method provides a stable, readable label for such
functions to keep printing and plotting robust.
Usage
# S3 method for `function`
toString(x, ...)
Arguments
- x
A function.
- ...
Unused (included for S3 method compatibility).