This example uses a
vector plot to show the changes in SAT exam scores for different North Carolina school systems
from 2012 to 2013. The graph is enhanced by adding
bubble plot overlays.
Here are the main features
of this graph:
-
Vector lines show the changes in
the average math and writing scores between 2012 and 2013.
-
Bubbles represent the average score
for each year. The size of the bubble represents the number of students
who took the test.
-
To modify the appearance, the arrow line thickness was reduced and the
transparency for the bubbles was increased. In addition,
grid lines and a sheen data skin were applied to the graph. (These changes were made in the
designer.)
-
To reduce the number of school
systems for comparison, a filter was applied in the designer on the
School System Name category.