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.
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Quadratic - represent the relationship between variables as one curve in a line.
This is useful where data fluctuates up and down.
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Cubic - represent the relationship between variables as two curves in a line.
This is useful where data fluctuates up and down.
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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.
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Gaussian - coming soon