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 Confidence interval for interpolation of X from Y

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iloyi Posted - 02/16/2023 : 11:43:32 PM
Hi, I am using Gadget>Interpolate. I got the interpolated values table. I am finding X value from Y, how do I find the confidence interval for the X value I interpolated? (Note: This is different from the usual find Y from X.)
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iloyi Posted - 02/21/2023 : 9:13:53 PM
Thank you very much!
YimingChen Posted - 02/17/2023 : 09:10:19 AM
To get the confidence interval of X from Y, you need to perform Non-linear curve fitting (menu Analysis->Fitting->Nonlinear Curve Fitting). See the figure below:


James

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