Here we are explaining how to write an R program to access the first value in a given vector. Here we are using a built-in function head() for this finding. The head() function helps to returns the first n rows of the dataset. The syntax of this method is like
head(x,n=number) #where x is the input dataset/dataframe and n is the number of rows that the function should display.
Below are the steps used in the R program to get the first value in a given vector. In this R program, 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: First print original vector values
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))
 "Original Vectors:"  32, 40, 12, 23, 27, 38, 9, 17  "Access the first value of the vector:"  32