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labview1958
 
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Default using two graphs to draw a third.


I have two graphs in excel. One graph has the values (1,3), (3,5), (5,
9), (7, 13) etc. The second graph has the values (2,3), (4,7), (6, 11),
(8, 19) etc. I would like to draw a third graph using the two graphs
like (1, y1/y2), (2, y1/y2), (3, y1/y2), (4, y1/y2) etc. Here y1 is the
value from graph 1 and y2 the corresponding value from graph 2. Now, I
am doing using a long method. First find the equation for graph 1 and
then find the y values for x=1,2,3 etc. The technique is repeated for
graph 2. Then I divide the values and plot the graph. It is tedious.
Is there a faster way?


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labview1958
 
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Default using two graphs to draw a third.


Anyone can help?


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labview1958
 
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Default using two graphs to draw a third.


anyone can offer any help?


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labview1958
 
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Default using two graphs to draw a third.


Anyone out there can help?


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Jon Peltier
 
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Default using two graphs to draw a third.

You feel like explaining what you want?

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
http://PeltierTech.com
_______


"labview1958"
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Anyone out there can help?


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labview1958
 
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Graph 1.(measurement)
(1,3), (3,5), (5, 9), (7, 13)

Graph 2.(measurement)
(2,3), (4,7), (6, 11), (8, 19)


Graph 3.(calculation)
(1, y1/y2), (2, y1/y2), (3, y1/y2), (4, y1/y2)

where y1 and y2 is obtained by first drawing a trendline, finding it's
equation and then substituting the x value to find the corresponding y
value. The two y values corresponding to a particular x is then found.
The ratio of the two y values is then calculated. Finally a third graph
is drawn.

The whole process is tedious. Is there a simpler way?


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