rlist (version 0.2.2)

list.cases: Get all unique cases by expression for a list

Description

Get all unique cases by expression for a list

Usage

list.cases(.data, expr, simplify = TRUE, ..., sort = TRUE)

Arguments

.data

list

expr

A lambda expression

simplify

logical. Should the values be simplified by unlist?

...

Additional parameters passed to unique

sort

logical. Should the cases be sorted in ascending order?

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.cases(x,type)
list.cases(x,mean(unlist(score)))