Dakota Reference Manual
Version 6.4
LargeScale Engineering Optimization and Uncertainty Analysis

Aleatory uncertain variable  uniform
This keyword is related to the topics:
Alias: none
Argument(s): INTEGER
Default: no uniform uncertain variables
Required/Optional  Description of Group  Dakota Keyword  Dakota Keyword Description  

Required  lower_bounds  Specify minimum values  
Required  upper_bounds  Specify maximium values  
Optional  initial_point  Initial values  
Optional  descriptors  Labels for the variables 
Within the uniform uncertain optional group specification, the number of uniform uncertain variables and the distribution lower and upper bounds are required specifications, and variable descriptors is an optional specification. The uniform distribution has the density function:
where and are the upper and lower bounds of the uniform distribution, respectively. The mean of the uniform distribution is and the variance is .
Note that this distribution is a special case of the more general beta distribution.