How to best-fit a function to a given set of data?
Why is this different from interpolation?
Do you have more than one independent variable?
Learn about regression and least squares method!
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7. Regression
Mohammad Tawfik
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Curve Fitting
• If the data measured is of high accuracy
and it is required to estimate the values of
the function between the given points,
then, polynomial interpolation is the best
choice.
• If the measurements are expected to be of
low accuracy, or the number of measured
points is too large, regression would be
the best choice.