R Programming: Create Data Frame and Display Duplicates & Unique rows

R Programming: Data frame Exercise-24 with Solution

Write a R program to create a data frame using two given vectors and display the duplicated elements and unique rows of the said data frame.

Sample Solution :

R Programming Code :

# Create vector 'a' with specified values
a = c(10, 20, 10, 10, 40, 50, 20, 30)

# Create vector 'b' with specified values
b = c(10, 30, 10, 20, 0, 50, 30, 30)

# Print a message indicating that the original data frame will be displayed
print("Original data frame:")

# Combine vectors 'a' and 'b' into a data frame 'ab'
ab = data.frame(a, b)

# Print the data frame 'ab'
print(ab)

# Print a message indicating that duplicated elements in the data frame will be shown
print("Duplicate elements of the said data frame:")

# Display duplicated elements of the data frame 'ab'
print(duplicated(ab))

# Print a message indicating that unique rows of the data frame will be shown
print("Unique rows of the said data frame:")

# Display unique rows of the data frame 'ab'
print(unique(ab))

Output:

[1] "Original data frame:"
   a  b
1 10 10
2 20 30
3 10 10
4 10 20
5 40  0
6 50 50
7 20 30
8 30 30
[1] "Duplicate elements of the said data frame:"
[1] FALSE FALSE  TRUE FALSE FALSE FALSE  TRUE FALSE
[1] "Unique rows of the said data frame:"
   a  b
1 10 10
2 20 30
4 10 20
5 40  0
6 50 50
8 30 30                         

Explanation:

• Define Vector a:
• a = c(10, 20, 10, 10, 40, 50, 20, 30)
• Creates a vector a with the specified numeric values.
• Define Vector b:
• b = c(10, 30, 10, 20, 0, 50, 30, 30)
• Creates a vector b with the specified numeric values.
• Print Message:
• print("Original data frame:")
• Prints the message indicating that the original data frame will be shown.
• Create Data Frame:
• ab = data.frame(a, b)
• Combines vectors a and b into a data frame named ab.
• Print Data Frame:
• print(ab)
• Displays the contents of the data frame ab.
• Print Message for Duplicates:
• print("Duplicate elements of the said data frame:")
• Prints the message indicating that duplicated elements in the data frame will be shown.
• Print Duplicated Elements:
• print(duplicated(ab))
• Displays a logical vector indicating which rows in the data frame ab are duplicates.
• Print Message for Unique Rows:
• print("Unique rows of the said data frame:")
• Prints the message indicating that unique rows in the data frame will be shown.
• Print Unique Rows:
• print(unique(ab))
• Displays the unique rows of the data frame ab, removing any duplicate rows.

R Programming Code Editor:

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