

   EExxttrraacctt CCoorrrreellaattiioonn MMaattrriixx

        corMatrix(object, ...)

   AArrgguummeennttss::

     object: an object for which a correlation matrix can be
             extracted.

        ...: some methods for this generic function require
             additional arguments.

   DDeessccrriippttiioonn::

        This function is generic; method functions can be writ-
        ten to handle specific classes of objects. Classes
        which already have methods for this function include
        all `corStruct' classes.

   VVaalluuee::

        will depend on the method function used; see the appro-
        priate documentation.

   AAuutthhoorr((ss))::

        Jose Pinheiro and Douglas Bates

   EExxaammpplleess::

        ## see the method function documentation

