allFun                  allFun: Data set for Fluency, Absorption, Fit
                        and Fun.
cowbell                 Computes a response surface as segmented linear
                        regression that resembles a cowbell.
fitted.cowbell          Implementation of the 'fitted' generic.
generateCowbell         Performs the segmented linear regression
                        analysis generating the cowbell function.
generateCowbellConcept
                        Expresses the fitting formula and the value
                        range of the variables.
plot.cowbell            Plots the obtained cowbell function.
predict.cowbell         Performs a prediction on the cowbell model that
                        has been generated.
print.cowbell           Summarizes the cowbell regression analysis
print.cowbellConcept    Summarizes the cowbell concept with the formula
                        and value ranges.
print.summary.cowbell   Prints the summary obtained by
                        'summary.cowbell'.
residuals.cowbell       Implementation of the 'residuals' generic.
summary.cowbell         Generates the core information of the cowbell
                        analysis.
testA                   testA: Artificial data set for testing.
