autofit_gaussian_2D     Automatically determine the best-fitting
                        2D-Gaussian for a data set
characterize_gaussian_fits
                        Characterize the orientation of fitted
                        2D-Gaussians
compare_gaussian_fits   Compare fitted 2D-Gaussians and determine the
                        best-fitting model
fit_gaussian_2D         Determine the best-fit parameters for a
                        specific 2D-Gaussian model
gaussplot_sample_data   Sample data set
get_volume_gaussian_2D
                        Compute volume under 2D-Gaussian
ggplot_gaussian_2D      Plot a 2D-Gaussian via ggplot
predict_gaussian_2D     Predict values from a fitted 2D-Gaussian
rgl_gaussian_2D         Produce a 3D plot of the 2D-Gaussian via rgl
