scoring

28 bgbb.pmf.General
Details
P(X(n)=x | alpha, beta, gamma, delta). Returns the probability that a customer makes x transactions
in the first n transaction opportunities.
Parameters t and x may be vectors. The standard rules for vector operations apply - if they are not
of the same length, the shorter vector will be recycled (start over at the first element) until it is as
long as the longest vector. It is advisable to keep vectors to the same length and to use single values
for parameters that are to be the same for all calculations. If one of these parameters has a length
greater than one, the output will be a vector of probabilities.
Value
Probability of X(n)=x, conditional on model parameters.
References
Fader, Peter S., Bruce G.S. Hardie, and Jen Shang. “Customer-Base Analysis in a Discrete-Time
Noncontractual Setting.” Marketing Science 29(6), pp. 1086-1108. 2010. INFORMS. http:
//www.brucehardie.com/papers/020/
See Also
bgbb.pmf.General
Examples
params