1. Watch the Introduction to Cleaning Data Using tidyr video:
2. Watch the Pivoting Wide Data to be Longer video:
3. Watch the Extracting Data From Within Columns video:
4. Watch the Separating Data From Within A Column video:
5. Watch the Combining Data From Multiple Columns video:
6. Watch the Making Long Data Wide video:
7. Watch the Gappy And Incomplete Data video: