Fitting and Parameter Estimation

Classes used for fitting (regression analysis) and estimation of parameter values given a data sample.

Modules
	Fit Method Classes
	Classes describing Fit Method functions.
	Fit Data Classes
	Classes for describing the input data for fitting.
	User Fitting classes
	Main Classes used for fitting a given data set.

Namespaces
namespace	ROOT::Fit
	Namespace for the fitting classes.