scoring

18 bgbb.PlotFrequencyInCalibration
Usage
bgbb.PlotFrequencyInCalibration(params, rf.matrix, censor = NULL,
plotZero = TRUE, xlab = "Calibration period transactions",
ylab = "Customers", title = "Frequency of Repeat Transactions")
Arguments
params
rf.matrix
censor
plotZero
xlab
ylab
title
BG/BB parameters - a vector with alpha, beta, gamma, and delta, in that order.
Alpha and beta are unobserved parameters for the beta-Bernoulli transaction
process. Gamma and delta are unobserved parameters for the beta-geometric
dropout process.
recency-frequency matrix. It must contain columns for frequency ("x"), recency
("t.x"), number of transaction opportunities in the calibration period ("n.cal"),
and the number of customers with this combination of recency, frequency and
transaction opportunities in the calibration period ("custs"). Note that recency
must be the time between the start of the calibration period and the customer’s
last transaction, not the time between the customer’s last transaction and the end
of the calibration period.
optional. Any calibration period frequency at this number, or above it, will be
binned together. If the censor number is greater than the maximum recency in
the recency-frequency matrix, the maximum recency will be used as the censor
number.
If FALSE, the histogram will exclude the zero bin.
descriptive label for the x axis.
descriptive label for the y axis.
title placed on the top-center of the plot.
Value
Calibration period repeat transaction frequency comparison matrix, actual vs. expected.
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/
Examples
data(donationsSummary)
rf.matrix