Bar charts can be used to visualize tables containing categorical data by using rectangular bars with a width and a height. A bar chart compares the sizes of the different categories in the table, where the size is any measured quantity. The example below shows a table giving the number of students according to the faculty. The faculty is the category, and the number of students is the measured size of this category.
|
Faculty
|
Number of Students
|
|
PhilFak
|
9278
|
|
WISO
|
9697
|
|
MedFak
|
4477
|
|
NatFak
|
5943
|
|
TechFak
|
10262
|
In the example below we implement a bar chart offering some some interaction, that can visualize different data sets.