Replace the Elements of a Vector in R Programming – replace() Function

replace() Function in detail

The replace() function in R is used to replace specific values in a given vector at specified indices with new values.

Syntax:

replace(x, list, values)

Parameters:

• x: The input vector.
• list: Indices where values need to be replaced.
• values: New values that will replace the existing ones at the specified indices.

Example 1:

# R program to demonstrate
# replace function

# Initializing a vector
data <- c("Apple", "Banana", "Cherry")

# Display the original vector
data

# Replace the element at index 2 with "Blueberry"
updated_data <- replace(data, 2, "Blueberry")

# Display the updated vector
updated_data

Output:

[1] "Apple"   "Banana"   "Cherry"
[1] "Apple"   "Blueberry"   "Cherry"

Example 2:

# R program to demonstrate
# replace function

# Initializing a vector
data <- c("Red", "Green", "Blue")

# Display the original vector
data

# Replace the element at index 1 with "Yellow"
# and the element at index 3 with "Orange"
updated_data <- replace(data, c(1, 3), c("Yellow", "Orange"))

# Display the updated vector
updated_data

Output:

[1] "Red"   "Green"   "Blue"
[1] "Yellow"   "Green"   "Orange"