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Moving Average Trendline

 
 
=?Utf-8?B?S1Q=?=
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      30th Jan 2006
The graph I am creating has a lot of noise in it. I want to smooth it out.
Right now I am using a moving average trendline that kind of does the trick.
When I do this I want to be able to work with the points that it has created
to make the trendline. Is there a way to get the points that this line makes
up? Or is there a way to filter the points in the graph such as take every
tenth data point or would I have to do that with the original set used to
make the graph by using a macro or something like that?
 
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Jon Peltier
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      31st Jan 2006
You can calculate your own moving average. Say your data is in column D,
starting in cell D2. To do a 10-point moving average, start in cell E11, and
enter this formula:

=average(D211)

fill this down to the end of the data in column D. Plot this data in your
chart.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
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"KT" <(E-Mail Removed)> wrote in message
news:AA440DC6-35BC-4E6F-BCBA-(E-Mail Removed)...
> The graph I am creating has a lot of noise in it. I want to smooth it
> out.
> Right now I am using a moving average trendline that kind of does the
> trick.
> When I do this I want to be able to work with the points that it has
> created
> to make the trendline. Is there a way to get the points that this line
> makes
> up? Or is there a way to filter the points in the graph such as take
> every
> tenth data point or would I have to do that with the original set used to
> make the graph by using a macro or something like that?



 
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