The str_sub() function | Text Manipulation with the stringr package in R

This video tutorial focuses on manipulating text in R, specifically using the STR_sub function to extract parts of strings. The instructor demonstrates this with the mtcars dataset, showing how to create a new variable for car models and extract the first three letters of each model name. The video also covers loading the tidyverse and GT extras packages to create and format tables, providing a practical example of data manipulation and presentation in R.

What is the primary function discussed in the video for extracting parts of a string in R?

• STR_sub

• STR_extract

• STR_part

• STR_slice

In the context of the video, what is the purpose of the STR_sub function?

• To replace text in a string

• To split a string into words

• To extract a subset of a string

• To concatenate strings

Which dataset is used in the video to demonstrate text extraction?

• iris

• mtcars

• diamonds

• airquality

What is the purpose of using GT Extras in the video?

• To create and style tables

• To clean data

• To visualize data

• To perform data analysis

Which theme is used in the video to style the table?

• GT Themes Minimal

• GT Themes Classic

• GT Themes Modern

• GT Themes 538