Extrapolation of a point on a graph/chart.
I have constructed a graph which consists of plots joined by a line (basic
line graph). How do i find the value of a point on that graph (if x = 0.37 then y = ?) other than printing the graph off and manually drawing the lines myself? Any pointers would be most welcome! |
Extrapolation of a point on a graph/chart.
"ExcelCretin" wrote in message
... I have constructed a graph which consists of plots joined by a line (basic line graph). How do i find the value of a point on that graph (if x = 0.37 then y = ?) other than printing the graph off and manually drawing the lines myself? Any pointers would be most welcome! If you've fitted a straight line, use the LINEST function to get the gradient and intercept of that line, and then use those coefficients to work out the y value for your x value. -- David Biddulph |
Extrapolation of a point on a graph/chart.
Thanks for the prompt response David, unfortunately I constructed a 'scatter'
with lines. does this make a difference? "David Biddulph" wrote: "ExcelCretin" wrote in message ... I have constructed a graph which consists of plots joined by a line (basic line graph). How do i find the value of a point on that graph (if x = 0.37 then y = ?) other than printing the graph off and manually drawing the lines myself? Any pointers would be most welcome! If you've fitted a straight line, use the LINEST function to get the gradient and intercept of that line, and then use those coefficients to work out the y value for your x value. -- David Biddulph |
Extrapolation of a point on a graph/chart.
Use the LINEST function to get the coefficients in worksheet cells. For
more search the XL help for LINEST, -- Regards, Tushar Mehta www.tushar-mehta.com Excel, PowerPoint, and VBA add-ins, tutorials Custom MS Office productivity solutions In article , says... I have constructed a graph which consists of plots joined by a line (basic line graph). How do i find the value of a point on that graph (if x = 0.37 then y = ?) other than printing the graph off and manually drawing the lines myself? Any pointers would be most welcome! |
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