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

list.mapv {rlist} | R Documentation

## 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, as, use.names = TRUE)

### Arguments

`.data` | a `list` or `vector`
`expr` | a lambda expression
`as` | the mode to corece. Missing to `unlist` the mapped results.
`use.names` | Should the names of the results be preserved?

### Value

A `vector` in which each element is mapped by `expr` in `.data`

### See Also

`list.map`

### 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))

[Package rlist version 0.4.6.1 Index]