Available when Mode is set to Trend Line.
Choose from the drop down list:
Linear - represent the relationship between variables as a straight line.
This is useful where data increases or decreases along a straight line, at a constant rate.
Quadratic - represent the relationship between variables as one curve in a line.
This is useful where data fluctuates up and down.
Cubic - represent the relationship between variables as two curves in a line.
This is useful where data fluctuates up and down.
Harmonic - represent the relationship between variables with turning points. The chart usually resembles a "W" or "M" shape.
This is useful for predicting if a variable is going to reverse direction or continue on in the same pattern.
Gaussian - coming soon