ids_of_types: Ids of Types

In eratosthenes: Archaeological Synchronism

Ids of Types

Description

Given a list object of finds (with keys of id, assoc, type in each entry), return a vector of the id elements that belong to one or more specified type.

Usage

ids_of_types(input, type = NULL)

## S3 method for class 'list'
ids_of_types(input, type = NULL)

Arguments

input	A list object whose elements are a list containing the keys of id, assoc, type.
type	A vector or element

Value

A vector of ids within a list object of finds class,

Examples

f1 <- list(id = "find01", assoc = "D", type = c("type1", "form1"))
f2 <- list(id = "find02", assoc = "E", type = c("type1", "form2"))
f3 <- list(id = "find03", assoc = "G", type = c("type1", "form1"))
f4 <- list(id = "find04", assoc = "H", type = c("type2", "form1"))
f5 <- list(id = "find05", assoc = "I", type = "type2")
f6 <- list(id = "find06", assoc = "H", type = NULL)

artifacts <- list(f1, f2, f3, f4, f5, f6)

ids_of_types(artifacts, type = "type1")
ids_of_types(artifacts, type = c("type1", "type2"))

eratosthenes documentation built on June 28, 2025, 1:08 a.m.