Blurb::Specifies the full matrix format when importing a
user-specified proposal covariance.

Description::

When importing the MCMC proposal covariance from a user-specified
filename, this keyword declares the use of a full matrix format, i.e.,
the user provides all values of the matrix, not just the diagonal.
The matrix must be symmetric, positive-definite.

Topics::

Examples::
\verbatim
method,									
        bayes_calibration queso
         samples = 1000 seed = 348
          dram
          proposal_covariance
            matrix filename 'dakota_cantilever_queso.matrix.dat'
\endverbatim

Theory::
Faq::
See_Also::
