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1332.0.55.002 - Statistical Language!, 2008  
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 27/06/2008  First Issue
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Contents >> Time Series >> Why are Time-series Created?

WHY ARE TIME-SERIES CREATED?

Collecting observations over time allows us to measure changes over a fixed period, and to compare changes from one time period to another.

Example of an Time-series:

Total Overtime for Employees of 'The Widget Company' 2006-2007, Original
Graph: time series 1


Time series arrow
Diagram: Time series


This graphs shows the total amount of overtime worked by employee's each month over a two year period. The series has not been adjusted for seasonal or irregular affects, making it difficult to visualise the underlying trends.





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