setRegressionType(regressionType)

Sets the regression type to be used.

Please refer to the description of TrendLayer for the supported regression types.

Argument	Default	Description
regressionType	(Mandatory)	Must be one of the constants LinearRegression, ConstrainedLinearRegression, ExponentialRegression and LogarithmicRegression, or the return value of perlchartdir::PolynomialRegression. They represent linear regression, constrained linear regression, exponential regression, logarithmic regression, and polynomial regression of configurable degree.

None