1. Introduction

Vectors are one of the fundamental structures in R, and occasionally, you might end up with duplicate values in them. In such situations, removing duplicates becomes necessary.

2. Program Overview

In this guide, we'll walk through an R program that efficiently removes duplicate values from a vector. We'll make use of the unique() function, which is an inbuilt R function designed for this specific purpose.

3. Code Program

``````
# Define a vector with duplicate elements
vector_with_duplicates <- c(1, 2, 2, 3, 4, 4, 5)

# Use the unique() function to remove duplicates
vector_without_duplicates <- unique(vector_with_duplicates)

# Print the result
print(vector_without_duplicates)
``````

Output:

```[1] 1 2 3 4 5
```

4. Step By Step Explanation

The program starts by defining a vector named 'vector_with_duplicates' containing some duplicate values.

To remove the duplicates, we use the unique() function which takes the vector as its input and returns a new vector without any duplicate values.

Finally, the 'vector_without_duplicates' is printed to display the result.