Google the function read_csv and find a way to import the Barro-Lee dataset into your R session. Similarly, install and load the package readstata13 and look up the function read.dta13 to load the Penn World Table dataset. In the Barro-Lee dataset, filter out so that you only consider people between 20 and 24 years old, using the variables ageto and agefrom.
Can someone help with R codes please.