Find elements that appear only once and are common to both Data Frames in R

R Programming: Data frame Exercise-21 with Solution

Write a R program to find elements come only once that are common to both given data frames.

Sample Solution:

R Programming Code:

# Create the first vector 'a' with elements "a", "b", "c", "d", "e"
a = c("a", "b", "c", "d", "e")

# Create the second vector 'b' with elements "d", "e", "f", "g"
b = c("d", "e", "f", "g")

# Print message indicating the original dataframes (vectors in this context)
print("Original Dataframes")

# Print the contents of the first vector 'a'
print(a)

# Print the contents of the second vector 'b'
print(b)

# Print message indicating the operation to find elements appearing only once in both vectors
print("Find elements come only once that are common to both given dataframes:")

# Find the union of both vectors, which combines all unique elements from both
result = union(a, b)

# Print the result of the union operation
print(result)

Output:

[1] "Original Dataframes"
[1] "a" "b" "c" "d" "e"
[1] "d" "e" "f" "g"
[1] "Find elements come only once that are common to both given dataframes:"
[1] "a" "b" "c" "d" "e" "f" "g"

Explanation:

Here is a brief explanation of the given R Programming code:

• Create vector a:
• The vector a is created with elements ("a", "b", "c", "d", "e").
• Create vector b:
• The vector b is created with elements ("d", "e", "f", "g").
• Print the label for original dataframes:
• Prints the message "Original Dataframes" to indicate that the original vectors will be displayed.
• Print vector a:
• Displays the contents of vector a: ("a", "b", "c", "d", "e").
• Print vector b:
• Displays the contents of vector b: ("d", "e", "f", "g").
• Print the label for operation:
• Prints the message "Find elements come only once that are common to both given dataframes:" to indicate the operation being performed.
• Find the union of vectors a and b:
• The union(a, b) function combines all unique elements from both vectors a and b. The result is stored in the variable result.
• Print the result:
• Displays the result of the union operation: ("a", "b", "c", "d", "e", "f", "g"), which contains all unique elements present in either vector.

R Programming Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a R program to find elements which are present in two given data frames.
Next: Write a R program to save the information of a data frame in a file and display the information of the file.