Internal MASS functions.
enlist(vec)
fbeta(x, alpha, beta)
frequency.polygon(x, nclass = nclass.freq(x), xlab="", ylab="", …)
nclass.freq(x)
neg.bin(theta = stop("'theta' must be given"))
negexp.SSival(mCall, data, LHS)
These are not intended to be called by the user. Some are for compatibility with earlier versions of MASS (the book).