1. Learn
    2. /
  2. Courses
    3. /
  3. Intermediate R

Exercise

Customize further: else if

The else if statement allows you to further customize your control structure. You can add as many else if statements as you like. Keep in mind that R ignores the remainder of the control structure once a condition has been found that is TRUE and the corresponding expressions have been executed. Here's an overview of the syntax to freshen your memory:

if (condition1) {
  expr1
} else if (condition2) {
  expr2
} else if (condition3) {
  expr3
} else {
  expr4
}

Again, It's important that the else if keywords comes on the same line as the closing bracket of the previous part of the control construct!

Instructions

100 XP

Add code to both control structures such that:

  • R prints out "Showing Facebook information" if medium is equal to "Facebook". Remember that R is case sensitive!
  • "Your number of views is average" is printed if num_views is between 15 (inclusive) and 10 (exclusive). Feel free to change the variables medium and num_views to see how the control structure respond. In both cases, the existing code should be extended in the else if statement. No existing code should be modified.