Decision Making in R Language

Decision Making

Decision Making structure, evaluate a condition and depending on the result some other code is processed.

There are three types of decision making statements in R

• If Statement
• If-Else Statement
• Switch Statement

If Statement

An if statement consists of a Boolean expression followed by one or more statement.

Syntax of is Statement :-

if(Boolean expression)
{
   // Code to be executed
}

If-Else Statements

An if statement can be followed by an optional else statement, which executes when the Boolean expression is false.

The syntax of if else is :

if (Boolean_expression)
{
   // Code to be executed
} 
else
{
    // Code to be executed
}

Example :-

   
Switch Statement

A switch statement allows a variable to be tested for equality against a list of values.

R has following Switch Statement :

    switch (expression, case1, case2..)
→ We can have any number of cases in switch.
→ No Default is available in switch.