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Math Help - Analysis of time-series data

  1. #1
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    Question Analysis of time-series data

    Hi,

    Firstly - sorry if this is the wrong place to post this, but I need help! Been a long time since I have had to do any maths so I appreciate any help you can give.

    I have been collecting electricity usage data from 6 households over a period of 28 days via use of a home energy monitor. This has allowed me to collect 1440 pieces of data per day per household.

    So far I have collated my data to half-hour portions allowing me easy graphic representation.

    Next (and importantly) I need to identify how much energy usage has changed over the period of 28 days, either overall or in comparison to the first week of data.

    What I want to identify is that they are either reducing their energy usage or maintaining their energy usage but with so many ups and downs its hard for me to gauge a way to represent this!

    Any help would be very much appreciated... any tips on statistical methods or graphical representations.

    P.s. attached a few examples of the graphs I have made
    Attached Thumbnails Attached Thumbnails Analysis of time-series data-averagepowerusage.png   Analysis of time-series data-week1data.png   Analysis of time-series data-week2data.png  
    Last edited by mr fantastic; August 7th 2011 at 05:11 AM. Reason: Title.
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