Blurb::
Discrete, epistemic uncertain variable - strings within a set
Description::
Discrete set variables may be used to specify categorical choices which are
epistemic. For example, if we have three possible forms for a physics
model (model 1, 2, or 3) and there is epistemic uncertainty about
which one is correct, a discrete uncertain set
may be used to represent this type of uncertainty.

This variable is defined by a set of strings, in which the discrete value may
take any value within the string set (for example, the set may be
defined as 'coarse', 'medium', and 'fine')

Other epistemic types include:

- :dakkw:`variables-continuous_interval_uncertain`
- :dakkw:`variables-discrete_interval_uncertain`
- discrete_uncertain_set :dakkw:`variables-discrete_uncertain_set-integer`
- discrete_uncertain_set :dakkw:`variables-discrete_uncertain_set-real`
Topics::
discrete_variables, epistemic_uncertain_variables
Examples::

.. code-block::

    discrete_uncertain_set
     string
     num_set_values 2             3
     set_values     'red' 'blue'  'coarse' 'medium' 'fine'
     descriptors    'ds1'         'ds2'


Theory::

Faq::

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