as.editmatrix interpretes the matrix as an
editmatrix. The columns of the matrix are the variables
and the rows are the edit rules (contraints).as.editmatrix(A, b = numeric(nrow(A)),
ops = rep("==", nrow(A)), ...)editmatrix.numeric of
length(nrow(x)), defaults to 0character of
length(nrow(x)) with the equality operators,
defaults to "=="editmatrix.x is given (the default), the
resulting editmatrix is of the form $Ax=0$. This can
be influenced by using the parameters b and
ops.editmatrix