common {fueleconomy}

Common models

Description

These models have at least 10 years worth of data. This dataset is suitable for a left-join designed to restrict the number of observations to a more manageable level.

Usage

common

Format

A dataset with variables make, model, n (total number of models) and years (total number of model-years).

Examples

if (require("dplyr")) {
vehicles %>% semi_join(common)
}