apply_at_index: Apply a Function to List Elements at Given Index

In KWB-R/fhpredict: R Package for the Project Flusshygiene

Description

Apply a Function to List Elements at Given Index

Usage

apply_at_index(x, i, fun, ..., prefix = NULL)

Arguments

x	a list or a data frame (which is in fact a list)
i	vector of indices of elements in x to which the function fun is to be applied
fun	function to be applied
...	further arguments passed to fun
prefix	optional. String used to prefix the names of the elements to which the function was applied. By default the name of the function fun is used as a prefix

Examples

(x <- list(a = 1, b = 2, c = 3))
fhpredict:::apply_at_index(x, i = -1, fun = exp)

(x <- data.frame(a = -(1:2), b = -(2:3), c = c("a", "b")))
fhpredict:::apply_at_index(x, i = -3, fun = abs)

KWB-R/fhpredict documentation built on Nov. 1, 2020, 5:58 a.m.