Blurb::
Manually specify the burn in period for the MCMC chain.
Description::
The burn in period is the number of samples at the beginning of the MCMC chain
that are discarded. The resulting chain is less dependent on the starting point
of the chain.

*Default Behavior*

If not specified, no MCMC samples are discarded

*Expected Output*

If ``burn_in_samples`` is specified, an additional tabular output file containing
the final MCMC chain is generated.
Topics::
Examples::
Generate a chain of length 1000 and discard the first 100 points,
resulting in a chain of length 900.


.. code-block::

    method,
     bayes_calibration queso
       chain_samples = 1000 seed = 348
       dram
     proposal_covariance
       diagonal values 1.0e6 1.0e-1
     burn_in_samples 100


Theory::

Faq::

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