Glossary:Time series
This is the stable Version.
A time series is a sequence of data which shows how the value of a variable changes over time. Normally such data are collected on a regular periodic basis.
Examples of time series are:
- the hourly change in a stock market index over a week;
- the monthly change in the amount of rainfall during a given year;
- the annual change in the birth rate in the EU over a decade.