Dakota Reference Manual: diagonal

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diagonal

Specifies the diagonal matrix format when specifying a user-specified proposal covariance.

## Specification

Alias: none

Argument(s): none

## Description

When specifying the MCMC proposal covariance in an input file, this keyword declares the use of a diagonal matrix format, i.e., the user only provides the (positive) values along the diagonal.

## Examples

    method,
            bayes_calibration queso
             samples = 1000 seed = 348
              dram
              proposal_covariance
                diagonal values 1.0e6 1.0e-1