list.map: Map each element in a list or vector by an expression.

In rlist: A Toolbox for Non-Tabular Data Manipulation

Description

Map each element in a list or vector by an expression.

Usage

list.map(.data, expr)

Arguments

.data	a list or vector
expr	A lambda expression

Value

A list in which each element is mapped by expr in .data

See Also

list.mapv

Examples

x <- list(p1 = list(type='A',score=list(c1=10,c2=8)),
       p2 = list(type='B',score=list(c1=9,c2=9)),
       p3 = list(type='B',score=list(c1=9,c2=7)))
list.map(x, type)
list.map(x, min(score$c1,score$c2))

Example output

$p1
[1] "A"

$p2
[1] "B"

$p3
[1] "B"

$p1
[1] 8

$p2
[1] 9

$p3
[1] 7

rlist documentation built on Sept. 5, 2021, 5:30 p.m.