vapplym: Memoizing wrapper for vapply.

In WinVector/wrapr: Wrap R Tools for Debugging and Parametric Programming

Memoizing wrapper for vapply.

Description

Memoizing wrapper for vapply.

Usage

vapplym(X, FUN, FUN.VALUE, ..., USE.NAMES = TRUE)

Arguments

X	list or vector of inputs
FUN	function to apply
FUN.VALUE	type of vector to return
...	additional arguments passed to lapply
USE.NAMES	passed to vapply

Value

vector of results.

See Also

VectorizeM, lapplym

Examples

fs <- function(x) { x <- x[[1]]; print(paste("see", x)); sin(x) }
# should only print "see" twice, not 6 times
vapplym(c(0, 1, 1, 0, 0, 1), fs, numeric(1))

WinVector/wrapr documentation built on Aug. 29, 2023, 4:51 a.m.