Exercise

Median life expectancies

In the next exercise, you will create a cumulative time series of the median housing price index in each region. In order to do this, you must first calculate the median housing price index in each year for each region.

Use the dplyr package to complete this task.

Instructions

100 XP

Find the median housing price index (house_price) for each region within each year using group_by() and summarize().
Name the new variable median_hpi.