Use of base estimator in repeat transactions model approach
# S3 method for base
rtModel(rt_df, time_matrix, price_diff, estimator, ...)
Repeat transactions dataset from rtCreateTrans()
Time matrix object from rtTimeMatrix()
Difference in price between the two transactions
Type of model to estimates (base, robust, weighted). Must be in that class.
Additional arguments
See `?rtModel` for more information