## How to have a trendline ignore 0 values

324 Views 3 Replies Latest reply: Feb 4, 2013 5:29 PM by Wayne Contello
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Feb 4, 2013 1:35 PM

I have a scatterpoint graph that is connected to checkbox formulas. I want to be able to get a good trendline when I uncheck some of the boxes and those values go to 0. Currently, when I use the moving average it factors in the zero, but I just want the 0< values. I have also tried using a polynomial trendline, but this does not seem to provide a very dynamic line. Even after removing multiple values it bearly budges.

Is there a way to maybe use the Series Data (in this case the X data) to create such a formula? or maybe some other options?

Thanks.

• Level 6 (12,650 points)
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Feb 4, 2013 3:04 PM (in response to ironfromcast)

make a column that copies values from another column when the checkbox is set otherwise it contains nothing:

D2=IF(C2=TRUE, A2, "")

E2=IF(C2=TRUE, B2, "")

The chart takes its input like:

• Level 6 (12,650 points)
Currently Being Moderated
Feb 4, 2013 5:29 PM (in response to ironfromcast)

iron,

in this case make a new table that contains only and X and Y column.  Make the cells in the X column refer to the actual X column and only take that value when the value is greater than 0... same for the Y.  Then make your chart refer to this new table.

=if(<SRC CELL>>0, <SRC CELL>, "")

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