DiceView: Apply.fun – R documentation

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Apply.fun

Apply Functions Over Array Margins, using custom vecorization (possibly using parallel)

Description

Emulate parallel apply on a function, from mclapply. Returns a vector or array or list of values obtained by applying a function to margins of an array or matrix.

Usage

Apply.fun(FUN, X, MARGIN = 1, .combine = c, .lapply = parallel::mclapply, ...)

Arguments

`FUN`	function to apply on X
`X`	array of input values for FUN
`MARGIN`	1 indicates to apply on rows (default), 2 on columns
`.combine`	how to combine results (default using c(.))
`.lapply`	how to vectorize FUN call (default is parallel::mclapply)
`...`	optional arguments to FUN.

Value

array of values taken by FUN on each row/column of X

Examples

X = matrix(runif(10),ncol=2);
  rowSums(X) == apply(X,1,sum)
  apply(X,1,sum) == Apply.fun(sum,X)

X = matrix(runif(10),ncol=1)
  rowSums(X) == apply(X,1,sum)
  apply(X,1,sum) == Apply.fun(sum,X)

X = matrix(runif(10),ncol=2)
f = function(X) X[1]/X[2]
apply(X,1,f) == Apply.fun(f,X)

DiceView

Methods for Visualization of Computer Experiments Design and Surrogate

v2.0-1

GPL-3

Authors

Yann Richet, Yves Deville, Clement Chevalier

Initial release

2020-11-27