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vezerid vezerid is offline
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Default formula to identify exact point where trendline intersects data

Jane,

It is possible that NONE of your data might actually fit the line.
That's the idea with trendlines, we have a discrete set of (x,y) pairs
and we try to find a continuous function that best fits them.

One thing you can do is use a column next to your dependent variable
and plot the function that you get from the trendline using your
independent variable column in place of x (e.g. =0.01*A2+7890)

Once you copy this you can see which values of x (if any) match the
value the trend function produces.

HTH
Kostis Vezerides


macropod wrote:
Hi Jane,

If you format the trendline to display its equation on the chart, that's the
formula you need.

Cheers

--
macropod
[MVP - Microsoft Word]


"Jane" wrote in message
...
I have a column of data for which I have created a scatter chart and then
sorted in descending order after which I added a trendline. I can hover

my
cursor to see the data point at which the trendline intersects my line of
data but.....

I need a formula that gives me the exact data point at which the trendline
interesects the data.

thank you in advance! Jane