hasName Function in R (Example)

In this R tutorial you’ll learn how to apply the hasName function.

The article will consist of these topics:

Let’s dive into it!

Creation of Example Data

Have a look at the following example data.

data <- data.frame(x1 = 1:5,    # Create example data
                   x2 = 5:1)
data                            # Print example data

Table 1 shows that our example data consists of five rows and two columns.

Example: How to Apply the hasName Function

In this section, I’ll illustrate how to use the hasName function to check whether a data frame object contains a certain variable name.

Consider the following R code:

hasName(data, "x1")             # Apply hasName function
# [1] TRUE

The previous syntax has checked whether our example data frame contains a column with the name “x1”. As you can see, the RStudio console has returned the logical indicator TRUE, i.e. our data frame contains a column with the name “x1”.

Let’s test another variable name:

hasName(data, "x3")             # Apply hasName function
# [1] FALSE

The column “x3” does not exist in our data frame.

Video, Further Resources & Summary

In case you need further information on the R syntax of this article, you might have a look at the following video on my YouTube channel. In the video, I show the R programming code of this tutorial.

Furthermore, you could read the other tutorials on this website:

• Get Column Names of Data Frame in R
• Select Variables that Contain Particular String in Column Name
• Change Letter Case of Column Names in R
• R Functions List
• All R Programming Examples

In summary: This article has illustrated how to use the hasName command in R. In case you have any further questions, let me know in the comments section.