Check out example codes for "r find elements in common between vectors". It will help you in understanding the concepts better.

Code Example 1

```
# Basic syntax:
intersect(vector_1, vector_2) # For two vectors
Reduce(intersect, list(vector_1, vector_2, vector_3)) # For multiple vectors
# Example usage:
vector_1 = c(1,2,3,4,5)
vector_1 = c(2,4,6,8)
intersect(vector_1, vector_2)
--> 2 4
# Note, the vectors don't have to have the same length
```

Learn ReactJs, React Native from akashmittal.com