Introduction to lists

mylist <- list("a", TRUE, lubridate::today())
mylist

## [[1]]
## [1] "a"
## 
## [[2]]
## [1] TRUE
## 
## [[3]]
## [1] "2024-07-19"

str(mylist)

## List of 3
##  $ : chr "a"
##  $ : logi TRUE
##  $ : Date[1:1], format: "2024-07-19"

mylist[2:3] # list subsetting (shortens the list)

## [[1]]
## [1] TRUE
## 
## [[2]]
## [1] "2024-07-19"

mylist[[3]] # element extraction (one level deeper)

## [1] "2024-07-19"