callWithData: Call a Function with Argument Combinations from a Data Frame

In KWB-R/kwb.utils: General Utility Functions Developed at KWB

Call a Function with Argument Combinations from a Data Frame

Description

Call a Function with Argument Combinations from a Data Frame

Usage

callWithData(
  FUN,
  data,
  ...,
  threshold = 0.5,
  SIMPLIFY = TRUE,
  USE.NAMES = TRUE
)

Arguments

FUN	function to be called
data	data frame with one column per argument of FUN
...	further (constant) arguments to FUN that are passed to mapply via MoreArgs
threshold	if the ratio of unique value combinations in the relevant columns in data to all value combinations in these columns is below this threshold value then FUN will be called only with the unique value combinations. This should increase performance.
SIMPLIFY	passed tomapply, default: TRUE
USE.NAMES	passed tomapply, default: TRUE

Value

vector of length nrow(data) with the result values returned by FUN

Examples

combis <- expand.grid(x = 1:2, y = c(10, 20, 30))
combis

callWithData(`+`, combis)

KWB-R/kwb.utils documentation built on April 1, 2024, 7:12 a.m.