Predicting method for objects of class "sbchoice".
# S3 method for sbchoice
predict(object, newdata = NULL, type = c("utility", "probability"),
...)
When newdata = NULL
and type = utility
, a vector containing utility
values of choosing Yes under bid values is returned. When newdata = NULL
and type = probability
, a vector containing probabilities of choosing Yes
is returned. When a new data is assigned to newdata
, a vector containing
utility values of choosing Yes (type = utility
) or probability of
choosing Yes (type = probability
) under the new data is returned.
an object of class "sbchoice".
a data frame containing new data to predict. If NULL
, the original data is used.
type of prediction (utility or probability).
optional arguments. Currently not in use.
The function predict()
for S3 object "sbchoice" calculates predicted values
according to the fitted model that is included in object
. The values are
predicted with the original data used for fitting the model if newdata = NULL
,
otherwise with a new data assigned to newdata
.
The current function does not estimate standard errors of predicted values.
sbchoice