KL_divergence           Kullback-Leibler divergence
KS_distance             Kolmogorov-Smirnov distance
cap_prior               calculates the prior according to the Carsel
                        and Parrish methodology
df_porosity             566 porosity values
genExPrior              prior using from external data
goodness_of_fit         tests goodness of fit to normal distribution
johnson_ln              log transform
johnson_sb              log ratio transform
johnson_su              hyperbolic arcsine transform
multiplot               multiplot function
normalize_pdf           Normalize a pdf
plotExData              plot histogram of measurements
plotExPrior             plot ex-situ prior
plotHyperDist           plot prior and posterior distribution of
                        hyperparameters
smooth_pdf              Smooths a pdf
