list.select: Select by name or expression for each member of a list

In rlist: A Toolbox for Non-Tabular Data Manipulation

Description

Select by name or expression for each member of a list

Usage

list.select(.data, ...)

Arguments

.data	A list or vector
...	A group of implicit labmda expressions

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.select(x, type)
list.select(x, tp = type)
list.select(x, type, score)
list.select(x, type, score.range = range(unlist(score)))

Example output

$p1
$p1$type
[1] "A"


$p2
$p2$type
[1] "B"


$p3
$p3$type
[1] "B"


$p1
$p1$tp
[1] "A"


$p2
$p2$tp
[1] "B"


$p3
$p3$tp
[1] "B"


$p1
$p1$type
[1] "A"

$p1$score
$p1$score$c1
[1] 10

$p1$score$c2
[1] 8



$p2
$p2$type
[1] "B"

$p2$score
$p2$score$c1
[1] 9

$p2$score$c2
[1] 9



$p3
$p3$type
[1] "B"

$p3$score
$p3$score$c1
[1] 9

$p3$score$c2
[1] 7



$p1
$p1$type
[1] "A"

$p1$score.range
[1]  8 10


$p2
$p2$type
[1] "B"

$p2$score.range
[1] 9 9


$p3
$p3$type
[1] "B"

$p3$score.range
[1] 7 9

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