Extract Column of dplyr Tibble in R (Example)

 

This article shows how to extract a certain tibble column as vector in R.

The article will consist of the following contents:

Let’s dive right in:

 

Creation of Example Data

If we want to work with tibbles, we first need to install and load the dplyr package in R:

install.packages("dplyr")                # Install dplyr package
library("dplyr")                         # Load dplyr package

Now, we can create an example tibble as shown below:

data <- data.frame(x1 = 1:5,             # Create example tibble
                   x2 = letters[1:5],
                   x3 = 1)
data <- as_tibble(data)
data                                     # Print example tibble
# # A tibble: 5 x 3
# x1    x2       x3
# <int> <fct> <dbl>
#     1 a         1
#     2 b         1
#     3 c         1
#     4 d         1
#     5 e         1

Our example tibble contains of three columns and five rows.

 

Example: Extract Column from tbl

If we want to select a specific column of our tibble and convert it to a vector, we can use the pull function:

x1 <- data %>% pull(x1)                  # Extract column from tibble
x1                                       # Print column to console
# 1 2 3 4 5

As you can see based on the RStudio console output, we extracted the column x1 from our tibble and created a new vector with the name x1.

 

Video & Further Resources

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

 

The YouTube video will be added soon.

 

Also, you could read the related articles on my homepage. Some tutorials about dplyr and similar R packages can be found here:

 

Summary: This tutorial illustrated how to convert a tibble variable to a vector in R programming. Let me know in the comments section, if you have any further questions. Furthermore, please subscribe to my email newsletter in order to receive regular updates on new tutorials.

 



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