Compare-Vectors-and-Find-Differences-in-R.R

#Compare Vectors and Find Differences in R (5 Examples)
vec1 <- c("A", "B", "C")        # Create first vector
vec1                            # Print first vector

## [1] "A" "B" "C"

vec2 <- c("A", "B", "D")        # Create second vector
vec2                            # Print first vector

## [1] "A" "B" "D"

#Example 1: Check If Two Vectors are Exactly the Same Using identical() Function
identical(vec1, vec2)           # Apply identical function

## [1] FALSE

#Example 2: Check Which Vector Elements of Two Vectors are the Same Using == Operator
vec1 == vec2                    # Apply == operator

## [1]  TRUE  TRUE FALSE

#Example 3: Check Which Elements of First Vector Exist in Second Vector Using %in% Operator
vec1 %in% vec2   

## [1]  TRUE  TRUE FALSE

c("A", "B", "C") %in% c("A", "B", "D","C") 

## [1] TRUE TRUE TRUE

c("A", "B", "D","C") %in% c("A", "B", "C")

## [1]  TRUE  TRUE FALSE  TRUE

#Example 4: Find Elements that Exist in First & Second Vector Using intersect() Function
intersect(vec1, vec2)           # Apply intersect function

## [1] "A" "B"

#Example 5: Find Elements that Exist Only in First, But Not in Second Vector Using setdiff() Function
setdiff(vec1, vec2) 

## [1] "C"

#ref https://statisticsglobe.com/compare-vectors-and-find-differences-in-r