This function fits the Qxt using method 4 (second step) (non-parametric smoothing, see reference).
Method4B(PartOne, MyData, OptMale, OptFemale, Plot = F, ShowPlot = F,
Color = MyData$Param$Color)The list returned by the Method4A() function.
The list returned by the AddReference() function.
Optimal smoothing parameters, obtained from the graphics generated by Method4A() for the male population.
Optimal smoothing parameters, obtained from the graphics generated by Method4A() for the female population.
If set to TRUE, a sub-directory will be created in the working directory. This sub-directory will contains png plots corresponding to the smoothed surface.
If true, show plots.
The color that will be used for the plots (HTML notation).