Posted by Jed Lewison on Wed Aug 20, 2008 at 12:18 PM Pacific

Tracking the polls

The charts in this post reflect a rolling average of all national polls. The average for each day is of all polls started within the previous one, two, or three weeks, depending on the chart.

The first set of charts covers June through present. As you can see, the two and three week charts are smoother than the one week chart.

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For the next set of charts, I included data from 2004. In order to make the comparison easier to see, I replotted the 2008 charts on the same horizontal axis as the 2004 charts.

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First, the one week horizon for both 2004 and 2008

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Second, the two week horizon for both 2004 and 2008.

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Third, the one week horizon for both 2004 and 2008.

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The data for the 2008 polls comes from pollster.com. The data for the 2004 polls comes from RealClearPolitics.com and RasmussenRepors.com. I calculated the rolling averages and made the charts.

Tracking the polls

The charts in this post reflect a rolling average of all national polls. The average for each day is of all polls started within the previous one, two, or three weeks, depending on the chart.

The first set of charts covers June through present. As you can see, the two and three week charts are smoother than the one week chart.

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