What should I believe in nonlinear curve fitting, Chi-square or R

How to determine which regression curve fits better? PYTHON

nonlinear vs fit curve giving different results? - JMP User Community

Nonlinear error function values must be less than linear models

What is the standard error of Mean Square?

Chi-square as evaluation metrics for nonlinear machine learning

Can anyone recommend an appropriate set of functions to fit the

Interpreting Chi-squared goodness of fit test statistic

R - NonLinear Least Square - GeeksforGeeks

Why does zinc chloride salt powder melt at 50 degrees?

What should I do and how should I test the relationship between my

Can anyone recommend an appropriate set of functions to fit the

Why can't we use the ordinary least squares method to fit the data

What is the reason of interference feature on the Halogen-Tungsten

616 questions with answers in NONLINEAR

8.2 Nonlinear Functions of a Single Independent Variable