A Spline Chart shows curved lines between the plot points instead of straight lines as seen on a Line Chart.
The smooth lines rendered in this chart are often more aesthetically pleasing than the sharp lines on other charts.
Here is example output using the Spline Area chart which fills in the area below the plot line:
The definiing characteristic of a Spline Chart is the curved line connecting plot points. This is often an improvement over the sharp lines on a normal Line Chart.
8/24/2015 8:24 PM