This function parses and validates the arguments for the function
roommate. It returns the validates arguments. This function
is called as part of roommate. Only one of the
arguments needs to be provided.
Usage
roommate.validate(utils = NULL, pref = NULL)
Arguments
utils
is a matrix with cardinal utilities for each individual in the
market. If there are n individuals, then this matrix will be of
dimension n-1 by n. Column j refers to the payoff that
individual j receives from being matched to individual 1, 2,
..., j-1, j+1, ...n. If a square matrix is passed as utils, then
the main diagonal will be removed.
pref
is a matrix with the preference order of each individual in the
market. This argument is only required when utils is not provided.
If there are n individuals, then this matrix will be of dimension
n-1 by n. The i,jth element refers to j's
ith most favorite partner. Preference orders can either be specified
using R-indexing (starting at 1) or C++ indexing (starting at 0). The
matrix pref must be of dimension n-1 by n. Otherwise,
the function will throw an error.
Value
The validated preference ordering using C++ indexing.
providing 
.