R Programming: Add 3 to each element in a Vector and Print results

Last update on December 21 2024 10:09:01 (UTC/GMT +8 hours)

Write a R program to add 3 to each element in a given vector. Print the original and new vector.

Sample Solution :

R Programming Code :

# Create a vector 'v' with elements 1, 2, NULL, 3, 4, NULL
v = c(1, 2, NULL, 3, 4, NULL)

# Print a message indicating the original vector
print("Original vector:")

# Print the content of the vector 'v'
print(v)

# Add 3 to each element of 'v', exclude NA values, and filter out non-positive values
new_v = (v + 3)[(!is.na(v)) & v > 0]

# Print a message indicating the new vector
print("New vector:")

# Print the content of the new vector after addition
print(new_v)

Output:

[1] "Original vector:"
[1] 1 2 3 4
[1] "New vector:"
[1] 4 5 6 7                         

Explanation:

• Create a vector:
• v = c(1, 2, NULL, 3, 4, NULL)
  A vector v is created containing the elements 1, 2, NULL, 3, 4, and NULL.
• Print message (Original vector):
• print("Original vector:")
  Prints a message indicating that the following output will display the original vector.
• Display the original vector:
• print(v)
  Displays the content of the vector v. Note that NULL values are not included in the printed output.
• Add 3 to each element and filter:
• new_v = (v + 3)[(!is.na(v)) & v > 0]
  Adds 3 to each element in v. Elements that are NA or non-positive (including NULL, which is treated as NA in this context) are filtered out. The result is stored in new_v.
• Print message (New vector):
• print("New vector:")
  Prints a message indicating that the following output will display the new vector.
• Display the new vector:
• print(new_v)
  Displays the content of the new vector new_v, which contains elements from v increased by 3 and filtered according to the condition.

R Programming Code Editor:

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