How can I calculate the area between axis and dataseries xl2002
I'm trying to calculate the area of a graph (data series) between the x-axis
and the data-series in excel 2002. I don't know how. Please help! |
Evert,
With your X-values in A1:A11, and your Y values in B1:B11, the formula =SUMPRODUCT((B2:B11+B1:B10)*(A2:A11-A1:A10))/2 with return the trapezoidal approximation of the area under the curve. Obviously, the smaller the interval of your X values, the better the resolution of the approximation. HTH, Bernie MS Excel MVP "Evert" wrote in message ... I'm trying to calculate the area of a graph (data series) between the x-axis and the data-series in excel 2002. I don't know how. Please help! |
See my website www.stfx.ca/people/bliengme/ExcelTips
best wishes -- Bernard V Liengme www.stfx.ca/people/bliengme remove caps from email "Evert" wrote in message ... I'm trying to calculate the area of a graph (data series) between the x-axis and the data-series in excel 2002. I don't know how. Please help! |
The graph is a little more complicated. It hass these kind of points
X y 1 0 2 15 3 30 4 45 5 53 6 18 7 20 8 10 9 2 10 0 "Bernard Liengme" wrote: See my website www.stfx.ca/people/bliengme/ExcelTips best wishes -- Bernard V Liengme www.stfx.ca/people/bliengme remove caps from email "Evert" wrote in message ... I'm trying to calculate the area of a graph (data series) between the x-axis and the data-series in excel 2002. I don't know how. Please help! |
My formula gives a value of 193:
=SUMPRODUCT((B2:B10+B1:B9)*(A2:A10-A1:A9))/2 -- HTH, Bernie MS Excel MVP "Evert" wrote in message ... The graph is a little more complicated. It hass these kind of points X y 1 0 2 15 3 30 4 45 5 53 6 18 7 20 8 10 9 2 10 0 "Bernard Liengme" wrote: See my website www.stfx.ca/people/bliengme/ExcelTips best wishes -- Bernard V Liengme www.stfx.ca/people/bliengme remove caps from email "Evert" wrote in message ... I'm trying to calculate the area of a graph (data series) between the x-axis and the data-series in excel 2002. I don't know how. Please help! |
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