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Results can only be as accurate as the standard curves used to extrapolate concentration measurements. Immunoassays and Bioassays require more sophisticated measures of curve fit, because the standard curves generated are not linear. As such, traditional linear regression measures of fit, such as R² are not as effective. Brendan's StatLIAŽ provides powerful, well-referenced metrics for non-linear data.
r2 fit prob

StatLIA® determines the correct weighting for each test method so that  Residual Variance, a direct measure of how well the curve fits the data points, and Fit Probability (FitProb™), a measure of the acceptability of the curve fit, may be calculated.

Download the Technical Report on StatLIA’s FitProb™ curve fit quality metric!

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