What is the effect of using the R next Statement inside a for Loop?
a) It skips the current iteration and continues with the next one
b) It exits the loop entirely
c) It pauses the loop until a condition is met
d) It reverses the order of iterations
Answer:
a) It skips the current iteration and continues with the next one
Explanation:
When the next
statement is used inside a for
loop, it skips the current iteration and continues with the next one. This is useful for bypassing specific values or conditions within the loop without exiting the loop entirely.
# Example of using next in a for loop
for (i in 1:5) {
if (i == 2 || i == 4) {
next # Skip iteration when i is 2 or 4
}
print(i)
}
# Output:
# [1] 1
# [1] 3
# [1] 5
In this example, the loop skips printing the values 2 and 4 and continues with the other iterations. The next
statement provides a way to handle specific conditions dynamically within the loop.