In this R program, we are using these built-in function levels(factor()) for this calculation. Here we are passing the values to the built-in functions directly. The levels(factor()) function in R computes the levels of factors of the vector in a single function.
Using the function factor() we can create a factor of the vector and by using the level() function we can find levels of a factor. Factors are stored as integer vectors and which is closely related to vectors. In this R program, we are using the variable 'v' for storing the vector.
STEP 1: Assign variable v with vector values
STEP 2: Use the built-in functions
STEP 3: First print the original vector values
STEP 4: levels(factor(v) with an argument as v to find levels of factors
STEP 5: print the result of the function
v = c(1, 2, 3, 3, 4, NA, 3, 2, 4, 5, NA, 5)
print("The original vector is:")
print(v)
print("Levels of factor of the vector:")
print(levels(factor(v)))
[1] "The original vector is:" [1] 1 2 3 3 4 NA 3 2 4 5 NA 5 [1] "Levels of factor of the vector:" [1] "1" "2" "3" "4" "5"
