Quartiles are the result of sorting quantitative variables and dividing the observations into four groups of equal sizes.
Related Articles
Five-Number Summary
The 5-number summary is a way to describe the spread of a distribution around a median. If we start by sorting the values from smallest to largest, then chunk our data into quartiles (four equal groups of data points) we can get the five-number ...
gf_boxplot()
The gf_boxplot() function will generate a boxplot (also known as a box and whiskers plot). A boxplot splits the data into quartiles, where each whisker and each half of the box contains 25% of all the observations. They are helpful for visualizing ...
Boxplots
Note: If you are viewing this article within the Help Desk widget from within the course textbook, we recommend opening the article in a new tab with the button in the top right corner (as seen below) so that the images will be easier to see. A ...