PPT Slide
5. Model Fitting on CD Sales Data for Further Investigations and Model Finding for Better Forcasting
- Almost all the sales patterns seem to be taking rapid penetration curves by eye-ball inspection.
- Usually exponential model is fitted on this type of data. Note that exponential model is a special case of Bass diffusion model when the internal influence parameter, q, is zero.
- Also Weibull distribution model is fitted because of its better performance for the first several data points.