Last Update: 12/23/2021
If you have large X/Y data, when you perform fitting on them with linear fit, polynomial fit (especially with high order), multiple linear fit or nonlinear curve fit, you may meet following problems
To avoid the problems
The problems do not always happen, but if you meet them, please transform the X or Y values to smaller values, such as subtracting the average value of the dataset.
Then we can perform fitting on the new Y values
Keywords:large data, linear fit, polynomial fit, multiple linear regression, nonlinear curve fit, Curve Fit, Fitting, Normalization