R Program to implement if else statement

April 18, 2022, Learn eTutorial
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How to implement the if-else statement

Here we are explaining how to write an R program to implement the `if-else` statement. Here we are using a control statement if-else for checking. The `if-else` statement helps to check the condition based on the condition the expression is performed. The syntax of `if-else` statement is like,

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

How to implement the if-else statement in the R program

Below are the steps used in the R program to implement the `if-else` statement. In this R program, we first create a vector quantity and assign it with a value of 50. Check the value of quantity using `if-else` the statement. Based on the condition print the corresponding statement.

ALGORITHM

STEP 1: Assign variable quantity with vector value 50

STEP 2: Check the value of quantity using if statement as if (quantity > 40)

STEP 3: Give the print statement inside `if` the condition

STEP 4: Give the print statement inside `else` the condition

STEP 5: print the statement based on the true condition

R Source Code

```                                          ```# Create vector quantity
quantity <-  50
# Set the is-else statement
if (quantity > 40) {
print('Great you sold a lot!')
} else {
print('Not enough for today')
}```
```

OUTPUT

`## [1] "Great you sold a lot!"`

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