# Remove or Show NA Values in Table in R (2 Examples)

In this R tutorial you’ll learn how to **remove or show NA values in a frequency table**.

The tutorial will contain the following:

Let’s just jump right in…

## Example Data

As the first step, let’s create some example data in R:

x <- c("a", "b", "a", NA, "a", "c", "b", NA) # Create example vector x # Print example vector # [1] "a" "b" "a" NA "a" "c" "b" NA |

x <- c("a", "b", "a", NA, "a", "c", "b", NA) # Create example vector x # Print example vector # [1] "a" "b" "a" NA "a" "c" "b" NA

Have a look at the previous output of the RStudio console. It shows that our example data is a character vector containing letters and some NA values (i.e. missing data).

## Example 1: Remove NA from Table

In this example, I’ll demonstrate how to create a frequency table without NA values using the table() function in R.

Have a look at the R code below:

table(x) # Table without NA values # x # a b c # 3 2 1 |

table(x) # Table without NA values # x # a b c # 3 2 1

As you can see, the NA values have automatically been deleted in the previous output.

## Example 2: Show NA in Table

The following R syntax illustrates how to display NA values in a frequency table.

For this task, we can apply the useNA argument of the table function as shown below:

table(x, useNA = "always") # Table with NA values # x # a b c # 3 2 1 2 |

table(x, useNA = "always") # Table with NA values # x # a b c # 3 2 1 2

The previous output illustrates the count of each character as well as the number of NA values in our vector.

## Video & Further Resources

I have recently published a video instruction on my YouTube channel, which illustrates the topics of this article. You can find the video below:

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Besides that, you may read the related articles which I have published on my website. I have published several articles about related topics such as missing data, graphics in R, vectors, and ggplot2.

- Remove Rows with NA in R Data Frame
- Remove NA Values from Vector
- Remove NA Values from ggplot2 Plot
- Introduction to R Programming

In this R tutorial you have learned how to **remove or explicitly display NA values in a frequency table**. Please let me know in the comments below, if you have any further comments and/or questions.

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