Data Cleaning Exercises

Dataset pack

Order lines with full-width digits

Order lines typed on mixed keyboards; some quantities use full-width digits.

Fictional data · UTF-8 CSV, every value quoted so padding and leading zeros survive; empty fields are missing values · free for personal and classroom practice · practise it in Digits that aren't ASCII.

lines 16 rows × 3 columns

Download lines.csv (Pro)

Data dictionary

id
Unique line ID.
item
Item name.
qty
Quantity as typed.

Values are shown in quotes so leading and trailing spaces are visible. ∅ means the cell is missing. Exercises are also graded on hidden datasets that are never published.