R 2.1 - Loading Data and Working With Data Frames
Get a refresher on navigating directories on your computer in R, and learn to load a CSV (comma-separated values) data set in the form of a "data frame" using the read.csv() function, which is a special type of data matrix. This video also introduces factor variables and explores the data in a data frame using the dim(), head(), length(), names(), and subset() functions.
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