If and Else function in R

ByHariharan Rajendran

If and Else function in R

I have discussed that how to use if and else statement in R in my previous article.

In a real time coding, we will be expecting a short form of code which should give the same expected result.

Vectors are basic building block of R Programming and will be used as input.

To apply the same if and else logic for the vector input, we can use if and else function which will give the same result but as a output vector.

 

Syntax:

Ifelse(test_expression,x,y)

The output of the function could be a vector. In the above syntax, test_expression is a condition which we can apply into the input vector and x is nothing but a custom value or expression, in logical it is called TRUE. If the condition is satisfied then x (TRUE) will display, you can replace x with any value. Here y is FALSE, if the test_expression is not satisfied then y will display.

Example,

number = c(3,5,7,10)
ifelse(number %% 2 == 0,”even”,”odd”)

image

Logically the result would be FALSE, FALSE, FALSE, TRUE.

About the Author

Hariharan Rajendran author

Hariharan Rajendran is a Microsoft Certified Trainer and Lead BI Solutions Consultant with 8+ years of experience in Database, BI and Azure platforms. Hariharan is also an active community leader, speaker & organizer and leads the Microsoft PUG (Power BI User Group – Chennai), SQLPASS Power BI Local Group – Chennai and an active speaker in SQL Server Chennai User Group and also a leader in Data Awareness Program worldwide events. Hariharan also frequently blogs (www.dataap.org/blog), provides virtual training (on ad-hoc basis) on Microsoft Azure, Database Administration, Power BI and database development to worldwide clients/audience.

Comments Are Closed!!!