Calculate polynomial curve
I'm trying to calculate the polynomial curve of a dataset (y values, x
values). This is essentially what an XY scatter chart does, thought I'd like to see the exact coefficients. Are there statistical functions that accomplish this? Thanks! Ron |
Calculate polynomial curve
Ron -
(1) Use the array-entered LINEST worksheet function (see Help for assistance), e.g., =LINEST(y-range, x-range^{1,2,3}) (2) Enter the x, x^2, x^3, ... data in adjacent columns on a worksheet, and use the Regression tool of the Analysis ToolPak. You'll get the LINEST results (and more) in formatted output. - Mike www.mikemiddleton.com "ronbrosh111" wrote in message ... I'm trying to calculate the polynomial curve of a dataset (y values, x values). This is essentially what an XY scatter chart does, thought I'd like to see the exact coefficients. Are there statistical functions that accomplish this? Thanks! Ron |
Calculate polynomial curve
Thanks!
"Mike Middleton" wrote: Ron - (1) Use the array-entered LINEST worksheet function (see Help for assistance), e.g., =LINEST(y-range, x-range^{1,2,3}) (2) Enter the x, x^2, x^3, ... data in adjacent columns on a worksheet, and use the Regression tool of the Analysis ToolPak. You'll get the LINEST results (and more) in formatted output. - Mike www.mikemiddleton.com "ronbrosh111" wrote in message ... I'm trying to calculate the polynomial curve of a dataset (y values, x values). This is essentially what an XY scatter chart does, thought I'd like to see the exact coefficients. Are there statistical functions that accomplish this? Thanks! Ron |
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