R: Convert an x-encoded simplex-lattice point to a u-encoded...
x2u
R Documentation
Convert an x-encoded simplex-lattice point to a u-encoded simplex-lattice point
Description
Convert an x-encoded simplex-lattice point to a u-encoded
simplex-lattice point (equivalently, "untabulate" bin counts)
Usage
x2u(x, labels=seq(along = x))
Arguments
x
x: A numeric vector. x[i] is interpreted as the count in bin i.
labels
A vector. Interpreted as the bin labels; default value is
seq(along = x), which causes return of a u-encoded simplex-lattice
point. Other values of labels cause return of the result of
subscripting labels with the u-encoded simplex-lattice point that
would have been obtained if the default value of labels were used.
Value
rep(labels, x), a vector of length sum(x). If labels = seq(along = x)
(the default), value is the u-encoded translation of the simplex
lattice point, x. Equivalently, value gives the bin numbers,
in lexicographic order, for the objects represented by the counts in
x. For other values of argument "labels", value gives the bin labels
for the objects represented by the counts in x (equivalent to
labels[x2u(x)]).