difcurve                Calculates the values for various diffusion
                        curves, given some parameters.
diffusion               Fit various diffusion curves.
plot.diffusion          Plot a fitted diffusion curve.
predict.diffusion       Predict future periods of a fitted diffusion
                        curve.
print.diffusion         Print a fitted diffusion curve.
tsAc                    Time series: Assassins Creeds
tsBroadband             Time series: Broadcast subscribers
tsCarstock              Time series: Stock of cars
tsChicken               Time series: Chicken weight
tsIbm                   Time series: Sales of IBM Computers
tsSafari                Time series: Safari Browser market share
tsWindows               Time series: Windows OS Platform Statistics
