append_attr: Add a module to a 'moduleList'

In SpaDES.core: Core Utilities for Developing and Running Spatially Explicit Discrete Event Models

Add a module to a moduleList

Description

Ordinary base lists and vectors do not retain their attributes when subsetted or appended. This function appends items to a list while preserving the attributes of items in the list (but not of the list itself).

Usage

append_attr(x, y)

## S4 method for signature 'list,list'
append_attr(x, y)

Arguments

x, y	A list of items with optional attributes.

Details

Similar to updateList but does not require named lists.

Value

An updated list with attributes.

Author(s)

Alex Chubaty and Eliot McIntire

Examples

library(igraph) # igraph exports magrittr's pipe operator
tmp1 <- list("apple", "banana") %>% lapply(., `attributes<-`, list(type = "fruit"))
tmp2 <- list("carrot") %>% lapply(., `attributes<-`, list(type = "vegetable"))
append_attr(tmp1, tmp2)
rm(tmp1, tmp2)

SpaDES.core documentation built on Aug. 19, 2022, 5:08 p.m.