Dataset pack

Daily sensor sheet

A spreadsheet-style sensor log with one column per day.

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 Dates hidden in column headers.

readings 8 rows × 4 columns

Download readings.csv (Pro)

Data dictionary

sensor: Sensor ID (unique).
2026-03-01: Reading on 1 March; empty when none.
2026-03-02: Reading on 2 March; empty when none.
2026-03-03: Reading on 3 March; empty when none.

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.