.. _method-bayes_calibration-muq-mala:

""""
mala
""""


Metropolis-adjusted Langevin algorithm




**Topics**


bayesian_calibration



.. toctree::
   :hidden:
   :maxdepth: 1

   method-bayes_calibration-muq-mala-step_size


**Specification**

- *Alias:* None

- *Arguments:* None

- *Default:* dram


**Child Keywords:**

+-------------------------+--------------------+--------------------+-----------------------------------------------+
| Required/Optional       | Description of     | Dakota Keyword     | Dakota Keyword Description                    |
|                         | Group              |                    |                                               |
+=========================+====================+====================+===============================================+
| Optional                                     | `step_size`__      | Parameter for the MALA MCMC algorithm in MUQ  |
+----------------------------------------------+--------------------+-----------------------------------------------+

.. __: method-bayes_calibration-muq-mala-step_size.html



**Description**


When the user selects 'bayesian_calibration muq' in the Dakota input file,
the occurrence of the 'mala' keyword will cause Dakota to use the MALA
algorithm (:cite:p:`RobTwe96`) from the MUQ library.