Here we explain how to write an R program to access the first value in a given vector. For that, we are using a built-in function head(). The head() function helps to return the first n rows of the dataset. The syntax of the head() function is like
head(x,n=number)
where,
In this R program, we are printing the original vector values, then we directly give the values to built-in functions. And print the function result. Here we used variable A for assigning vector values.
STEP 1: Assign variable A with vector values
STEP 2: Display the original values of vector
STEP 3: Call the function tail as head(A,n=1)
STEP 4: print the result of the function
A= c(32, 40, 12, 23, 27, 38, 9, 17)
print("Original Vectors:")
print(A)
print("Access the first value of the vector:")
print(head(A, n=1))
[1] "Original Vectors:" [1] 32, 40, 12, 23, 27, 38, 9, 17 [1] "Access the first value of the vector:" [1] 32
