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.
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).
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
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)
[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"