R Program to how to find common elements between two dataframe in r

How to find elements that are common but only come once to both given data frames

Here we are explaining how to write an R program to find elements that are common but only come once to both given data frames. Here we are using a built-in function union(). The function union() helps to calculate the union of subsets of a probability space. The syntax of this function is, 


union(x,y, …) 

Where x, y vectors, data frames, or ps objects containing a sequence of items. And dots(...) indicates the arguments to be passed to or from other methods.

How to find elements that are common but only come once to both given data frames in the R program

Below are the steps used in the R program to find elements that are common but only come once to both given data frames. In this R program, we directly give the data frame to a built-in function. Here we are using variables X, Y for holding different data frames. Finally, find the common elements but only come once to both given data frames by calling the function union() like union(X, Y).

ALGORITHM

STEP 1: Assign variables X, Y with data frames 

STEP 2: First print original data frames 

STEP 3:  Find the common elements but only come once to both the data frames by calling like union(X, Y)

STEP 4:  Store the result in the variable result

STEP 5: Print the final data frame

R Source Code

                                          X = c("a", "b", "c", "d", "e")
Y = c("d", "e", "f", "g")
print("Original Dataframes")
print(X)
print(Y)
print("Elements that are common but only come once to both given data frames:")
result = union(X, Y)
print(result)

                                      

OUTPUT

[1] "Original Dataframes"
[1] "a" "b" "c" "d" "e"
[1] "d" "e" "f" "g"
[1] "Elements that are common but only come once to both given data frames:"
[1] "a" "b" "c" "d" "e" "f" "g"