While loop in R Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print numbers from 1 to 5 using a while loop.

R Programming

i <- 1
while (i [1] 5) {
  print(i)
  i <- i + 1
}

Drag options to blanks, or click blank then click option'

A>=

B<=

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'i < 5' which stops the loop before printing 5.

Using 'i > 5' which never runs the loop.

The condition i <= 5 ensures the loop runs while i is 1 through 5.

2fill in blank

medium

Complete the code to stop the loop when x reaches 10.

R Programming

x <- 1
while (x [1] 10) {
  print(x)
  x <- x + 1
}

Drag options to blanks, or click blank then click option'

A<

B>=

C>

D<=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<=' which includes 10 and runs one extra time.

Using '>' which never runs the loop.

The condition x < 10 stops the loop before x becomes 10.

3fill in blank

hard

Fix the error in the loop condition to avoid an infinite loop.

R Programming

count <- 5
while (count [1] 0) {
  print(count)
  count <- count - 1
}

Drag options to blanks, or click blank then click option'

A<=

B<

C>=

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' causes the loop to never run.

Using '<=' causes an infinite loop.

The condition count > 0 ensures the loop stops when count reaches 0.

4fill in blank

hard

Fill both blanks to create a loop that prints even numbers from 2 to 10.

R Programming

num <- 2
while (num [1] 10) {
  print(num)
  num <- num [2] 2
}

Drag options to blanks, or click blank then click option'

A<=

B<

C+

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' excludes 10 from printing.

Using '-' decreases num causing an infinite loop.

The loop runs while num is less than or equal to 10, and num increases by 2 each time.

5fill in blank

hard

Fill all three blanks to create a loop that prints squares of numbers from 1 to 5.

R Programming

i <- 1
while (i [1] 5) {
  print(i [2] i)
  i <- i [3] 1
}

Drag options to blanks, or click blank then click option'

A<=

B*

C+

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' excludes 5 from printing.

Using '+' instead of '*' prints double i, not square.

Using '-' decreases i causing infinite loop.

The loop runs while i is less than or equal to 5, prints i squared, and increases i by 1 each time.