Data Cleaning Exercises

Dataset pack

Form resubmissions

Form submissions where people sometimes submit the same form again from another time zone.

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 The latest answer counts.

submissions 16 rows × 5 columns

Download submissions.csv (Pro)

Data dictionary

id
Unique submission ID.
form
Form name.
email
Email as typed.
submitted_at
Submission time, ISO 8601 with offset.
answer
Answer given.

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.