Time-series data
Time-series data records observations on a single unit — a firm, country, or market index — at successive, regularly spaced points in time.
Also known astime series
See it move
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A horizontal timeline marks four successive quarters along an axis labelled 'Quarter (one firm, same unit, successive periods)': Q1 2024 sales of €120k, Q2 2024 sales of €145k, Q3 2024 sales of €138k, and Q4 2024 sales of €162k. Each observation belongs to the same firm and the same unit of measurement, recorded at equal time intervals. This structure — repeated observations on one subject over time — distinguishes time-series data from cross-sectional data, where different subjects are observed at a single point.
Where it fits
TopicFoundations: Data, Populations & SamplingCoreSubjectData Analysis & StatisticsCore