Dakota Reference Manual  Version 6.4
Large-Scale Engineering Optimization and Uncertainty Analysis
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hyperprior_alphas


Shape (alpha) of the inverse gamma hyper-parameter prior

Specification

Alias: none

Argument(s): REALLIST

Required/Optional Description of Group Dakota Keyword Dakota Keyword Description
Required hyperprior_betas

Scale (beta) of the inverse gamma hyper-parameter prior

Description

Shape of the prior distribution for calibrated error multipliers. Either a single value or number of hyper-parameters values may be specified.

Default: 102.0 (with beta = 103.0) so mean and mode are approximately 1.0 and standard deviation is about 0.1.