To extract elements from a list in R programming, we are using the list() function. It is a built-in function that helps to create a list. The syntax of this function is
list(…)
Where,
In this R program, we directly give the values to a built-in function list(). Here we are using variables L1 for holding the list elements g1, g2, and g3. Call the function list() with different types of elements. Extract all elements except the 3rd one of the first vector as like L1$g1 = L1$g1[-3]. Finally, print the vector value.
STEP 1: Assign variables L1 with a list
STEP 2: Create L1 with 3 sets of elements g1, g2, g3
STEP 3: Print the first vector
STEP 4: The first vector without the element is extracted by L1$g1 = L1$g1[-3]
STEP 5: Print the final vector value
L1 = list(g1 = 1:5, g2 = "C Programming", g3 = "JAVA")
print("Original list:")
print(L1)
print("First vector:")
print(L1$g1)
print("First vector without third element:")
L1$g1 = L1$g1[-3]
print(L1$g1)
[1] "Original list:" $g1 [1] 1 2 3 4 5 $g2 [1] "C Programming" $g3 [1] "JAVA" [1] "First vector:" [1] 1 2 3 4 5 [1] "First vector without third element:" [1] 1 2 4 5
