Data Cleaning Exercises

Dataset pack

Lead acquisition channels

Leads with the channel they came from, to be encoded for a model.

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 One-hot encode a category.

leads 14 rows × 2 columns

Download leads.csv (Pro)

Data dictionary

id
Unique lead ID.
channel
Acquisition channel as captured.

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.