rnb.plot.beta.comparison(beta.values, fprefix, report = NULL, qq.length = 501L, points.per.group = rnb.getOption("distribution.subsample"))list of two non-empty vectors of type
double. If any of the vectors contains NAs, this method may exit with an error."_density",
"_histogram" and "_qq" to this prefix.integer value showing the number of quantiles to be calculated and presented
in the generated Q-Q plot.2 disables subsampling.ReportPlot.