# R Error: Non-numeric Argument to Binary Operator | How to Fix (Example)

This tutorial illustrates how to **deal with the error message “non-numeric argument to binary operator”** in the R programming language.

Table of contents:

Let’s dive right into the example!

## Example: Reproducing & Fixing the Error Message: non-numeric argument to binary operator

In this Example, I’ll explain how to reproduce and fix the error message “non-numeric argument to binary operator”. First, let’s create an example that reproduces the error:

5 * "three" # Trying to use character string in equation # Error in 5 * "three" : non-numeric argument to binary operator |

5 * "three" # Trying to use character string in equation # Error in 5 * "three" : non-numeric argument to binary operator

As you can see based on the previous R code, we have tried to use a character string in an equation (i.e. “three”). Unfortunately, this is not possible in the R programming language.

If we want to solve this problem, we need to replace the character string by a numeric value (i.e. 3). Let’s do that:

5 * 3 # Proper equation # 15 |

5 * 3 # Proper equation # 15

As you can see, the RStudio console is not returning the error anymore. Instead it shows the result of our equation.

## Video & Further Resources

Would you like to learn more about error messages in R? Then you might have a look at the following video of my YouTube channel. I explain the R programming code of this page in the video instruction:

*The YouTube video will be added soon.*

Besides the video, you could have a look at the other articles of my website.

Summary: In this article you learned how to **handle the error non-numeric argument to binary operator** in the R programming language. Tell me about it in the comments, in case you have additional questions.

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