poly$\_$curve$\_$fit.m

Example of using the polyfit and polyval commands to determine the coefficients of a polynomial that best fits the supplied independent $/$ dependent data.

Type: help polyfit and help polyfit to get help on these functions at the Matlab prompt Regression$\_$Example.m

Example of using the backslash operator $($Matrix left divide$)$ to determine the coefficients of an arbitrary set of independent variables $($states$)$ that $[$best fit the dependent data.

Type help mldivide to get help on this function

r$\_$squared.m

Function called by the above functions to calculate the R Squared statistic $-$ a measure of how much of the variation in the dependent variable is explained by the regression. This function needs to be unzipped and in the same directory as the above functions for them to work properly.