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R For Loop

The for loop in R is used to iterate over a sequence, such as a vector, list, or range of numbers. It is ideal for scenarios where the number of iterations is predetermined.

Key Topics

For Loop Syntax

The syntax for a for loop in R is as follows:

for (variable in sequence) {
    # Code to execute
}

In this syntax, variable takes each value in the sequence, and the code block is executed for each value.

For Loop Example

# Example of a for loop
for (i in 1:5) {
    print(paste("Value of i is:", i))
}

Output:

[1] "Value of i is: 1"
[1] "Value of i is: 2"
[1] "Value of i is: 3"
[1] "Value of i is: 4"
[1] "Value of i is: 5"

Code Explanation: The for loop iterates over the sequence 1:5. During each iteration, the value of i is printed.

Key Takeaways

  • The for loop is used when the number of iterations is known.
  • It can iterate over any iterable object, such as vectors, lists, or ranges.
  • Ensures that the code block executes for each element in the sequence.
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