rlist (version 0.2.2)

list.mapv: Map each member of a list by an expression to a vector.

Description

Map each member of a list by an expression to a vector.

Usage

list.mapv(.data, expr, use.names = TRUE)

Arguments

.data

list

expr

The expression

use.names

Should the names of the results be preserved?

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.mapv(x,type)
list.mapv(x,min(score$c1,score$c2))