Predict choices
Returns the expected choices for a set of one or more alternatives based on the results from an estimated model.
predictChoices(model, alts, altID, obsID = NULL)
model: The output of a model estimated model using the logitr()
function. Include if you want to compare true choices from actual observations (e.g. hold outs) to the predicted choices.
alts: A data frame of a set of alternatives for which to predict choices. Each row is an alternative and each column an attribute corresponding to parameter names in the estimated model.
altID: The name of the column that identifies each alternative in each set of alternatives.
obsID: The name of the column that identifies each set of alternatives. Required if predicting results for more than one set of alternatives. Defaults to NULL (for a single set of alternatives).
A data frame with the predicted choices for each alternative in alts.