R Programming: Concatenate two given Factors into a single Factor

Last update on December 21 2024 10:11:17 (UTC/GMT +8 hours)

Write a R program to concatenate two given factor in a single factor.

Sample Solution :

R Programming Code :

# Create the first factor 'f1' with random samples from LETTERS
f1 <- factor(sample(LETTERS, size=6, replace=TRUE))

# Create the second factor 'f2' with random samples from LETTERS
f2 <- factor(sample(LETTERS, size=6, replace=TRUE))

# Print a message indicating the start of the original factors
print("Original factors:")

# Print the first factor 'f1'
print(f1)

# Print the second factor 'f2'
print(f2)

# Concatenate the levels of both factors and create a new factor 'f'
f = factor(c(levels(f1)[f1], levels(f2)[f2]))

# Print a message indicating the result after concatenation
print("After concatenate factor becomes:")

# Print the concatenated factor 'f'
print(f)

Output:

[1] "Original factors:"
[1] Q Y M J J H
Levels: H J M Q Y
[1] B J L S F Z
Levels: B F J L S Z
[1] "After concatenate factor becomes:"
 [1] Q Y M J J H B J L S F Z
Levels: B F H J L M Q S Y Z                         

Explanation:

• Generate and Convert Factors:
• Two factors, f1 and f2, are created by sampling 6 random letters from the LETTERS vector and converting these samples into factors.
• Print Original Factors:
• The code prints a message and then displays the original factors f1 and f2.
• Concatenate Factors:
• The levels of f1 and f2 are combined into a single vector. This vector is then converted into a new factor f.
• Print Concatenated Factor:
• A message is printed, followed by the display of the new factor f that results from concatenating the levels of f1 and f2.

R Programming Code Editor:





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