Best viewed in LARGE or FULL-SCREEN mode. This video is part of the online R Class that is sponsored by this channel. In particular this is Part 1 (of 2) of an introduction to Data Frames. You may download the code for session from https://raw.githubusercontent.com/steviep42/youtube/master/YOUTUBE.DIR/data_frames.R The following topics can be found:
Creating Data Frames - 0:14
Adding rows and columns, Merging data frames - 2:18
Querying / Setting meta information - 5:50
Indexing into data frames using bracket notation- 8:20
Using logical expressions as an index - 11:45
