BTYD (version 2.4)

pnbd.PlotDropoutRateHeterogeneity: Pareto/NBD Plot Dropout Rate Heterogeneity

Description

Plots and returns the estimated gamma distribution of mu (customers' propensities to drop out).

Usage

pnbd.PlotDropoutRateHeterogeneity(params, lim = NULL)

Arguments

params

Pareto/NBD parameters - a vector with r, alpha, s, and beta, in that order. r and alpha are unobserved parameters for the NBD transaction process. s and beta are unobserved parameters for the Pareto (exponential gamma) dropout process.

lim

upper-bound of the x-axis. A number is chosen by the function if none is provided.

Value

Distribution of customers' propensities to drop out.

Details

This returns the distribution of each customer's exponential parameter that determines their lifetime (using the Pareto/NBD assumption that a customer's lifetime can be modeled with an exponential distribution).

Examples

params <- c(0.55, 10.56, 0.61, 11.64)
pnbd.PlotDropoutRateHeterogeneity(params)
params <- c(0.55, 10.56, 3, 11.64)
pnbd.PlotDropoutRateHeterogeneity(params)