Data Cleaning Exercises

Dataset pack

Coded satisfaction answers

A coded survey question with special codes for don't know and refused, plus its codebook.

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 Survey codes that mean missing.

responses 17 rows × 2 columns

Download responses.csv (Pro)

Data dictionary

respondent
Respondent ID (unique).
q5
Answer code as text.

codebook 7 rows × 2 columns

Download codebook.csv (Pro)

Data dictionary

code
Answer code.
label
What the code means.

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.