The residual is the sum of deviations from a best-fit curve of arbitrary form.
![R=sum[y_i-f(x_i,a_1,...,a_n)]^2.](/images/equations/Residual/NumberedEquation1.svg) |
The residual should not be confused with the correlation coefficient.
Residual
See also
Residual Set, Residual vs. Predictor PlotExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Residual." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Residual.html