Curve Fitting Wizard (MATLAB Program)

The Curve Fitting Wizard is a MATLAB program that facilitates curve fitting for experimental or analytical data. The implementation leverages MATLAB's built-in curve fitting functions such as fit() and fittype(), allowing users to import datasets through functions like readtable() or xlsread(). Users can select from various fitting models including polynomial, exponential, or custom equations, with parameter optimization handled via least-squares algorithms or nonlinear regression methods. The program provides an interactive interface for visualizing residual plots, confidence intervals, and goodness-of-fit metrics (R-squared, RMSE). Key features include automated model selection through algorithms like AIC (Akaike Information Criterion) and real-time parameter adjustment sliders. The underlying code structure utilizes MATLAB's object-oriented programming for managing fitting sessions, with export capabilities generating MATLAB scripts for reproducibility. This tool significantly accelerates curve fitting workflows by integrating data preprocessing, model validation, and visualization in a unified environment, making it particularly valuable for engineering and scientific applications requiring robust data modeling.