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Intersection of two lines

 
 
=?Utf-8?B?YWty?=
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      25th Jan 2006
Hey. I used the scatterplot to make a chart of 4 trendlines. And now I need
to get the exact intersection of each pair. The only ways I can do it is (1)
go through the data itself and find the exact intersection point - which is
very slow.. or (2) bring my mouse arrow as closet to the intersection point
on the graph and get an estimate.

Is there a way to get the exact intersection point? Perhaps by selecting the
two lines I want the intersection of .. etc?
Thank you!
 
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Andy Pope
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      26th Jan 2006
Hi,

I have some information on plotting the intersecting points of lines.
http://www.andypope.info/charts/intersection.htm

If the lines are true chart trend lines then you will need to have a
look that these sites for information on getting trend line points.
Bernard V Liengme's www.stfx.ca/people/bliengme
Tushar Mehta's Trendline coefficients
http://www.tushar-mehta.com/excel/ti...efficients.htm

Cheers
Andy

akr wrote:
> Hey. I used the scatterplot to make a chart of 4 trendlines. And now I need
> to get the exact intersection of each pair. The only ways I can do it is (1)
> go through the data itself and find the exact intersection point - which is
> very slow.. or (2) bring my mouse arrow as closet to the intersection point
> on the graph and get an estimate.
>
> Is there a way to get the exact intersection point? Perhaps by selecting the
> two lines I want the intersection of .. etc?
> Thank you!


--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info
 
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Bernard Liengme
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      26th Jan 2006
By solving equations. This will be simple if the lines are linear - tell us
more
best wishes
--
Bernard V Liengme
www.stfx.ca/people/bliengme
remove caps from email

"akr" <(E-Mail Removed)> wrote in message
news:96D2DC6F-D4A4-48BE-B89E-(E-Mail Removed)...
> Hey. I used the scatterplot to make a chart of 4 trendlines. And now I
> need
> to get the exact intersection of each pair. The only ways I can do it is
> (1)
> go through the data itself and find the exact intersection point - which
> is
> very slow.. or (2) bring my mouse arrow as closet to the intersection
> point
> on the graph and get an estimate.
>
> Is there a way to get the exact intersection point? Perhaps by selecting
> the
> two lines I want the intersection of .. etc?
> Thank you!



 
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