Today we introduced readr package. It is a package used for reading csv/xls/txt etc. data. It is designed to flexibly parse many types of data found in the wild, while still cleanly failing when data unexpectedly changes. 
We covered the functionality of the package and the difference between this package and base R.
Next week we will talk about apply family.
See you next Wednesday from 10 am – 12 pm at DSSC (Lehman Social Science Library Room 215)!