22 - Inspecting Data Frames

Data frames can be inspected with similar subsetting mechanisms to those used for vectors and factors. In this video, you will see how you can search and extract information on a data frame a) by index, b) by column name and c) using relational operators.

0:10 Learning outcomes 0:40 Subsetting by positional Index 0:53 Data frames as 2D objects 5:39 Subsetting by column name 6:15 The stringsAsFactors argument of data.frame() 8:37 Subsetting relational statements 10:21 Code summary ... https://www.youtube.com/watch?v=DWyUrJl9f74