List
  • Lists are the R objects which contain elements of different types like − numbers, strings, vectors, matrix, functions, and another list
  • Index starts from 1
    • Create List
    l = list("Red", 1, c(1, 2, 3, 4), TRUE)
    Accessing
    l = list("Red", 1, c(1, 2, 3, 4), TRUE)

names(l) = c("l_color", "l_num", "l_list", "l_boolean")

print(l[1]) # access by index
print(l$l_color) # access by name
    Operations
    l = list("Red", 1, c(1, 2, 3, 4), TRUE)

l[length(l)+1] = 100 # add element at the end

l[length(l)] = NULL # remove the last element

l[1] = "Blue" # update element
print(l)

l1 = list("Red", 1)
l2 = list("Blue", 2)

l3 = c(l1, l2) # merge lists

print(l3)

a = 1:10
b = list(a) # convert vector to list
c = unlist(b) # convert list to vector

print(c)