UQ PDF Calculation Errors

CCSI-Toolset / FOQUS

FOQUS: Framework for Optimization and Quantification of Uncertainty and Surrogates

https://foqus.readthedocs.io

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UQ PDF Calculation Errors #226

Closed CSRussell2319 closed 6 years ago

CSRussell2319 commented 6 years ago

distribution selection_2 This error appears when trying to generate samples with Lognormal or Beta distributions and PSUADE (Latin hypercube used here). I've attached the PSUADE log files as well.

psuadelog_lognormal_dist_uq_sample.txt psuadelog_beta_dist_uq_sample.txt

sotorrio1 commented 6 years ago

@CSRussell2319 :

In the case of lognormal distribution, psuade is complaining about the value of the lower bound (in your case equals to -2). Lower bound has to be >0.
In the case of beta distribution, psuade is telling you that support for beta distribution is (0,1) and in your case the lower bound is <0.

If you change the lower bounds you should be able to generate the samples.

CSRussell2319 commented 6 years ago

@sotorrio1 Your suggestion does work