list.which: Give the indices of list elements satisfying a given...

In rlist: A Toolbox for Non-Tabular Data Manipulation

Description

Give the indices of list elements satisfying a given condition

Usage

list.which(.data, cond)

Arguments

.data	A list or vector
cond	A logical lambda expression

Value

an integer vector

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.which(x, type == 'B')
list.which(x, min(score$c1,score$c2) >= 8)

Example output

[1] 2 3
[1] 1 2

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