Project: clean a messy customer list
Turn a customer list merged from two sources into one clean row per customer, with tidy names and emails, standard state codes and no repeats.
In this lesson
- States and other short codes.
- Keep a copy of the original until you've checked the result.
Try a free lesson first
Delete repeated rows from a merged list, and choose which columns decide what counts as a duplicate.
Confident · 9 min · Free, with no sign-up
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Send yourself the link and open it on a laptop or desktop.
On your computer, go tolearnford.com/go/BV7C
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- Skill
- Data cleaning
- Stage
- Confident
Where it sits in Data cleaning
- Remove duplicatesFreeStart here
- Clean an imported CSV12 min
- Reshape data from wide to long12 min
- Project: clean a messy customer listThis lesson14 min
The steps
11 steps: 4 explanations, 6 Do this, 1 question, then Your turn.
Try a free lesson first
Delete repeated rows from a merged list, and choose which columns decide what counts as a duplicate.
Confident · 9 min · Free, with no sign-up
Do the free lesson on your computer.
Send yourself the link and open it on a laptop or desktop.
On your computer, go tolearnford.com/go/BV7C