Find a specific number of elements in a list or vector satisfying a given condition

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Description

Find a specific number of elements in a list or vector satisfying a given condition

Usage

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list.find(.data, cond, n = 1L)

Arguments

.data

A list or vector

cond

A logical lambda expression

n

The number of items to find. (n = 1L by default)

Value

A list or vector of at most n elements in .data found to satisfy cond.

Examples

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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.find(x, type=='B', 1)
list.find(x, min(score$c1,score$c2) >= 9)

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