Marginals of a board
Various utilities to calculate the marginal totals of a board.
marginals(x) dof(x) is.board(x) as.board(x) .Cargs(x)
- A matrix, usually including one or more
NAentries, coerced to integer (a
board); see details section
marginals() takes a matrix and returns a list holding
the marginal totals and the coordinates of blank squares.
dof() takes a board and returns the number of degrees
of freedom present.
.Cargs() takes a matrix and coerces it to a list
suitable for calling the
C++ routines; it is not really
intended for the end-user. This function uses formal S4 methods to
coerce a matrix to an object of class
board (checking for
non-integer entries, etc), as do the functions documented in