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

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append_attr(x, y)

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

Arguments

x

A list of items with optional attributes.

y

See x.

Details

Similar to updateList but does not require named lists.

Value

An updated list with attributes.

Author(s)

Alex Chubaty and Eliot McIntire

Examples

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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)

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