Replace NA by FALSE in R (2 Examples)

This article shows how to exchange NA with FALSE in R programming.

Letâ€™s do this.

Example Data

First of all, letâ€™s create some example data in R:

```data <- data.frame(x1 = c(NA, TRUE, TRUE, NA),    # Create example data
x2 = c(NA, FALSE, NA, TRUE),
x3 = c(FALSE, NA, TRUE, TRUE))
data                                              # Print example data```

Table 1 shows the structure of the example data: It consists of four rows and three logical columns (i.e. TRUE and FALSE). Some of the values in our data are missing (i.e. NA).

Example 1: Replace NA by FALSE Using Base R

Example 1 illustrates how to substitute all NA values in a data frame by the logical indicator FALSE.

For this task, we can apply the is.na function as shown below:

```data_new1 <- data                                 # Duplicate data
data_new1[is.na(data_new1)] <- FALSE              # Replace NA by FALSE
data_new1                                         # Print updated data```

As shown in Table 2, the previous R syntax has created a new data frame called data_new1 where the NA values in all variables have been set to FALSE.

Example 2: Replace NA by FALSE Using dplyr Package

In Example 2, Iâ€™ll show how to use the dplyr package to replace NA by FALSE.

We first need to install and load the dplyr package to R:

```install.packages("dplyr")                         # Install & load dplyr package
library("dplyr")```

Next, we can exchange every not available value by FALSE:

```data_new2 <- data %>%                             # Replace NA by FALSE
replace(is.na(.), FALSE)
data_new2                                         # Print updated data```

In Table 3 it is shown that we have created the same output as in Example 1. However, this time we have used the dplyr package instead of Base R.1

Video & Further Resources

If you need further explanations on the examples of this page, you could watch the following video tutorial on my YouTube channel. Iâ€™m explaining the R codes of this tutorial in the video:

In addition, you could have a look at some of the other tutorials on my website.

In this R tutorial you have learned how to replace NA by FALSE in all variables of a data matrix. By the way: A similar syntax might be used to replace only the values in some specific columns. In case you have further questions or comments, let me know in the comments.

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