string

String (categorical) valued point histogram variable

Specification

• Alias: None

• Arguments: INTEGER

Child Keywords:

Required/Optional	Description of Group	Dakota Keyword	Dakota Keyword Description
Optional		pairs_per_variable	Number of pairs defining each histogram point string variable
Required		abscissas	String abscissas for a point histogram
Required		counts	Counts for string-valued point histogram
Optional		initial_point	Initial values for variables
Optional		descriptors	Labels for the variables

Description

This probability mass function is string-valued; the abscissa values must all be strings. The n abscissa values are paired with n counts which indicate the relative frequency (mass) of each string relative to the other specified strings.

Examples

histogram_point_uncertain
  string = 2
  pairs_per_variable = 2            3
  abscissas          = 'no' 'yes'   'function1' 'function2' 'function3'
  counts             = 1     1      1           2           1
  descriptors        = 'vote'       'which_function'

Here there are two variables, the first one (‘vote’) has two possible string values ‘yes’ and ‘no’ which are equally probable. The second one has three options for ‘which_function’, and ‘function2’ is twice as probable as ‘function1’ or ‘function3’.