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trendline in scatter plot



 
 
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  #1  
Old April 5th, 2010, 06:39 AM posted to microsoft.public.excel.charting
shafierin
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Posts: 1
Default trendline in scatter plot


how can i add trendline or best fit line on a scatter plot which has
multiple set of data. for example, i had 3 set of data for 3 different
depth (0cm,15cm and 30cm) and i plot all three in a scatter plot. is it
posible if i want only a line for describe all three depth despite of
having a line for each color (3 line for 3 depth). or if i made all 3
depth together in one set of data and get a trendline from that
scatter, how i can differentiate which point is 0cm, 15cm and 30cm?




--
shafierin
  #2  
Old April 5th, 2010, 02:10 PM posted to microsoft.public.excel.charting
Bernard Liengme
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Posts: 516
Default trendline in scatter plot

Please give us a short example of your datasets
best wishes
--
Bernard Liengme
Microsoft Excel MVP
http://people.stfx.ca/bliengme

"shafierin" wrote in message
...

how can i add trendline or best fit line on a scatter plot which has
multiple set of data. for example, i had 3 set of data for 3 different
depth (0cm,15cm and 30cm) and i plot all three in a scatter plot. is it
posible if i want only a line for describe all three depth despite of
having a line for each color (3 line for 3 depth). or if i made all 3
depth together in one set of data and get a trendline from that
scatter, how i can differentiate which point is 0cm, 15cm and 30cm?




--
shafierin


  #3  
Old April 5th, 2010, 03:42 PM posted to microsoft.public.excel.charting
Jon Peltier[_2_]
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Posts: 386
Default trendline in scatter plot

Not clear what you're asking.

A trendline added to a series uses every point in the series in its
calculations.

If you want a trendline to use more than one series in its calculations,
you should create a series that uses all data from all series, and make
a trendline from this combined series.

- Jon
-------
Jon Peltier
Peltier Technical Services, Inc.
http://peltiertech.com/


On 4/5/2010 1:39 AM, shafierin wrote:
how can i add trendline or best fit line on a scatter plot which has
multiple set of data. for example, i had 3 set of data for 3 different
depth (0cm,15cm and 30cm) and i plot all three in a scatter plot. is it
posible if i want only a line for describe all three depth despite of
having a line for each color (3 line for 3 depth). or if i made all 3
depth together in one set of data and get a trendline from that
scatter, how i can differentiate which point is 0cm, 15cm and 30cm?




  #4  
Old April 5th, 2010, 06:15 PM posted to microsoft.public.excel.charting
EricG[_2_]
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Posts: 96
Default trendline in scatter plot

You need to create a fourth set of data that combines all three of your
existing sets of data. Add the fourth set of data to your scatter plot as a
new series. Select that series and add a trendline to it. Then format the
series to have no lines and no symbols to it disappears. What you're left
with is the original three series, each with a unique format, and the
trendline that fits all of the data.

HTH,

Eric

"shafierin" wrote:


how can i add trendline or best fit line on a scatter plot which has
multiple set of data. for example, i had 3 set of data for 3 different
depth (0cm,15cm and 30cm) and i plot all three in a scatter plot. is it
posible if i want only a line for describe all three depth despite of
having a line for each color (3 line for 3 depth). or if i made all 3
depth together in one set of data and get a trendline from that
scatter, how i can differentiate which point is 0cm, 15cm and 30cm?




--
shafierin
.

 




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