Bass: 'Bass'

In NumbersInternational/flipStartup: Analytics for startups

Bass

Description

Fits the Bass model for new products.

Usage

Bass(data, remove.last = TRUE)

Arguments

data	A data.frame that has the same variables as a RevenueData object.
remove.last	Remove the final period (as usually is incomplete).

Details

Fits the model using OLS. While NLS estimation may be better in some situations, OLS is less prone to computational errors (e.g., problems with start points, non-convergence)

Value

A list containing the following elements:

p	The coefficient of innovation

.

q	The coefficient of immitation

.

observed

The observed sales/penetration

.

predicted

The predicted/fitted sales/penetration

.

max	The maximum revenue (or the revenue at 1,000 time periods, whichever is smaller)

.

References

Bass, Frank (1969). "A new product growth for model consumer durables". Management Science 15 (5): 215-227.

NumbersInternational/flipStartup documentation built on Feb. 26, 2024, 5:39 a.m.