least square curve fitting
leastsqr()
It opens a graphical user interface (GUI) for Least Square Fitting.
you can either enter your data in the table manually or select the data from present in the variable browser.
It currently offer Least Square curve fitting(Linear, Exponential, Power Function, and Polynomial),
and Interpolation(Linear, Cubic Spline, Nearest neighbor, and Smooth Spline ).
It will plot the given data and fitted curve and display corresponding equation on result window.