# Feature Requests

**URL:** https://uqworld.org/c/uq-with-uqlab/feature-requests/13.md

[Latest](https://uqworld.org/latest.md) · [Categories](https://uqworld.org/categories.md) · [Tags](https://uqworld.org/tags.md)

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## [Inverse Gaussian distribution](https://uqworld.org/t/inverse-gaussian-distribution/3651)

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**Author:** [@Abdul\_Waris\_Kenue](https://uqworld.org/u/Abdul_Waris_Kenue)\
**Replies:** 5\
**Last updated:** [January 30, 2025, 5:13am UTC](https://uqworld.org/t/inverse-gaussian-distribution/3651 "2025-01-30T05:13:33Z")

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Greetings, I am new to the UQLab/UQWorld interface and have found it to be an outstanding tool, significantly reducing the time I would otherwise spend developing and writing code from scratch. My research focuses on r…

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## [Implementation of an parallel update for AIES scheme](https://uqworld.org/t/implementation-of-an-parallel-update-for-aies-scheme/3937)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 1\
**Last updated:** [December 10, 2024, 1:27pm UTC](https://uqworld.org/t/implementation-of-an-parallel-update-for-aies-scheme/3937 "2024-12-10T13:27:21Z")

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Dear All, Continuing the discussion from UQlab MCMC – AIES not supporting parallel computing now?: I suggest to ignore the statement \`\`… due to its sequential nature, the algorithm cannot be parallelized which makes it…

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## [How to get the analytical formula of the model?](https://uqworld.org/t/how-to-get-the-analytical-formula-of-the-model/1876)

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**Author:** [@JUN\_LAI](https://uqworld.org/u/JUN_LAI)\
**Replies:** 4\
**Last updated:** [April 17, 2024, 2:09pm UTC](https://uqworld.org/t/how-to-get-the-analytical-formula-of-the-model/1876 "2024-04-17T14:09:22Z")

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Hello, I completed the modeling with the Kriging model, but I think the eval function is too slow ，is there a way to get the analytical formula of the model? Greetings Frank

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## [Generalised Lambda Distribution](https://uqworld.org/t/generalised-lambda-distribution/1918)

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**Author:** [@Sridhar](https://uqworld.org/u/Sridhar)\
**Replies:** 1\
**Last updated:** [June 19, 2023, 11:40am UTC](https://uqworld.org/t/generalised-lambda-distribution/1918 "2023-06-19T11:40:02Z")

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Hi, Thank you for a wonderful open-access toolchain. It has helped me a lot. Are you planning to include “Generalised Lambda Distribution” as one of the features in the future? Regards, Sridhar

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## [Corection for UQLab Bayesian Inference Manuell: section on affine invariant ensemble algorithm](https://uqworld.org/t/corection-for-uqlab-bayesian-inference-manuell-section-on-affine-invariant-ensemble-algorithm/1879)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 0\
**Last updated:** [May 3, 2023, 11:42am UTC](https://uqworld.org/t/corection-for-uqlab-bayesian-inference-manuell-section-on-affine-invariant-ensemble-algorithm/1879 "2023-05-03T11:42:22Z")

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Hello, I would like to suggest corrections for the UQLab user maunal Bayesian Inference for model calibration and inverse problems, Section 1.3.4 Affine invariant ensemble algorithm. In this section it is claimed t…

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## [\`uq\_createInput\` Geting rid of inconsistent use of 'Lognormal' or 'LogNormal'](https://uqworld.org/t/uq-createinput-geting-rid-of-inconsistent-use-of-lognormal-or-lognormal/1869)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 0\
**Last updated:** [April 21, 2023, 10:49am UTC](https://uqworld.org/t/uq-createinput-geting-rid-of-inconsistent-use-of-lognormal-or-lognormal/1869 "2023-04-21T10:49:46Z")

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Hello, I think I found some inconsistency for the contents of the requested input of uq\_createInput if one is interested in creating an input object with a lognormal distribution: If one wants to create the object by …

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## [\[Feature Proposal\] Nested Sampling](https://uqworld.org/t/feature-proposal-nested-sampling/1789)

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**Author:** [@David](https://uqworld.org/u/David)\
**Replies:** 0\
**Last updated:** [February 6, 2023, 8:24am UTC](https://uqworld.org/t/feature-proposal-nested-sampling/1789 "2023-02-06T08:24:08Z")

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Dear Developers My name is David and I would like to propose a new extended feature for UQLab called “Nested Sampling”. As the name suggests, my proposal is to develop a new toolbox for nested sampling algorithms. Neste…

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## [Advanced prediction methods for kriging](https://uqworld.org/t/advanced-prediction-methods-for-kriging/1584)

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**Author:** [@Rob](https://uqworld.org/u/Rob)\
**Replies:** 0\
**Last updated:** [May 10, 2022, 3:52pm UTC](https://uqworld.org/t/advanced-prediction-methods-for-kriging/1584 "2022-05-10T15:52:45Z")

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Dear UQ-Team, thanks for providing such a great Toolbox. Comparing to what’s available, UQLab is clearly one of the most reliable and best-documented UQ-toolbox out there. On my wishlist for the kriging packager are th…

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## [Uq\_display: Allowing acceptance plot after ''removing" bad chains,](https://uqworld.org/t/uq-display-allowing-acceptance-plot-after-removing-bad-chains/1183)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 4\
**Last updated:** [May 6, 2022, 2:06pm UTC](https://uqworld.org/t/uq-display-allowing-acceptance-plot-after-removing-bad-chains/1183 "2022-05-06T14:06:08Z")

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Dear @paulremo, dear all, it seems that I again used UQLab in an unexpected way that ended up in an error. I have tried to generated an acceptance plot by uq\_display(myBayesianAnalysis, 'acceptance', true) after hav…

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## [Uq\_display\_uq\_inversion: Determine limits for scatter plots for posteriori samples from the posteriori samples instead of using prior samples (at least, if there no prior samples)](https://uqworld.org/t/uq-display-uq-inversion-determine-limits-for-scatter-plots-for-posteriori-samples-from-the-posteriori-samples-instead-of-using-prior-samples-at-least-if-there-no-prior-samples/1141)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 4\
**Last updated:** [May 6, 2022, 11:39am UTC](https://uqworld.org/t/uq-display-uq-inversion-determine-limits-for-scatter-plots-for-posteriori-samples-from-the-posteriori-samples-instead-of-using-prior-samples-at-least-if-there-no-prior-samples/1141 "2022-05-06T11:39:11Z")

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Dear @paulremo , dear all, In UQLab 1.4, the values given as parameter for 'Limits' limits are no longer ignored by the function uq\_scatterDensity, such that the values in the corresponding calls to this function in u…

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## [Adding a comand to the code in Section 2.2.6.2 of UQLab User Manual on Bayesian inference](https://uqworld.org/t/adding-a-comand-to-the-code-in-section-2-2-6-2-of-uqlab-user-manual-on-bayesian-inference/1575)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 0\
**Last updated:** [April 29, 2022, 3:31pm UTC](https://uqworld.org/t/adding-a-comand-to-the-code-in-section-2-2-6-2-of-uqlab-user-manual-on-bayesian-inference/1575 "2022-04-29T15:31:06Z")

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Dear UQLab team, thank you for further improving UQlab by updating it so version 2.0. I am now my way to transfer my codes from UQLab 1.4 to 2.0 and have now tested my test scripts following UQLab user manual – Bayesia…

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## [uq\_postProcessInversion: Problem: burnIn fraction does not lead to consistent number of posterior sample points](https://uqworld.org/t/uq-postprocessinversion-problem-burnin-fraction-does-not-lead-to-consistent-number-of-posterior-sample-points/1572)

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**Author:** [@klux](https://uqworld.org/u/klux)\
**Replies:** 0\
**Last updated:** [April 28, 2022, 7:59am UTC](https://uqworld.org/t/uq-postprocessinversion-problem-burnin-fraction-does-not-lead-to-consistent-number-of-posterior-sample-points/1572 "2022-04-28T07:59:42Z")

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Dear UQWorld community, I encountered a similar issue as mentioned in the Feature request (already closed), this time for the fraction instead of the integer value. In the manual for Bayesian inversion on page 55, it…

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## [New names for fields in \`.PriorPredSample\` and \`.PostPredSample\`](https://uqworld.org/t/new-names-for-fields-in-priorpredsample-and-postpredsample/1342)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 0\
**Last updated:** [October 11, 2021, 8:50am UTC](https://uqworld.org/t/new-names-for-fields-in-priorpredsample-and-postpredsample/1342 "2021-10-11T08:50:59Z")

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Dear @paulremo, dear all, you/Paul-Remo Wagner wrote in one of your/his posts dealing with the contents of myBayesianAnalysis.Results: While reviewing this, I realized that the naming of .PriorPredSample and .PostPr…

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## [PDF and CDF](https://uqworld.org/t/pdf-and-cdf/1339)

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**Author:** [@YUF](https://uqworld.org/u/YUF)\
**Replies:** 2\
**Last updated:** [October 8, 2021, 3:48pm UTC](https://uqworld.org/t/pdf-and-cdf/1339 "2021-10-08T15:48:01Z")

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Hi everyone, I have two questions I am confused. I can see the figure of ''Pf versus numbers of samples (or to say iteration times) ‘’ in the file《uq\_Example\_Reliability\_02\_hat》. What should do if I want to know the t…

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## [Bayesian inference in UQLab: suggestions for improving the plot functions and the corresponding UQLab User Manual](https://uqworld.org/t/bayesian-inference-in-uqlab-suggestions-for-improving-the-plot-functions-and-the-corresponding-uqlab-user-manual/781)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 3\
**Last updated:** [October 4, 2021, 12:26pm UTC](https://uqworld.org/t/bayesian-inference-in-uqlab-suggestions-for-improving-the-plot-functions-and-the-corresponding-uqlab-user-manual/781 "2021-10-04T12:26:59Z")

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Bayesian inference in UQLab: suggestions for improving the plot functions and the corresponding UQLab User Manual Dear @paulremo, dear all after starting to work with UQLab, performing some Bayesian inference computat…

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## [uq\_postProcessInversion: Problem, if burnIn is an integer value](https://uqworld.org/t/uq-postprocessinversion-problem-if-burnin-is-an-integer-value/1148)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 8\
**Last updated:** [October 4, 2021, 12:16pm UTC](https://uqworld.org/t/uq-postprocessinversion-problem-if-burnin-is-an-integer-value/1148 "2021-10-04T12:16:10Z")

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Dear @paulremo, dear all, I think I have found an inconsistency between the manual for Bayesian inversion and the code in uq\_postProcessInversion.m if one is calling this function with an integer value for the burnIn …

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## [uq\_postProcessInversion: Extension of docmentation to deal with multiple calls of this function, code corrections and extension](https://uqworld.org/t/uq-postprocessinversion-extension-of-docmentation-to-deal-with-multiple-calls-of-this-function-code-corrections-and-extension/656)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 4\
**Last updated:** [October 4, 2021, 12:11pm UTC](https://uqworld.org/t/uq-postprocessinversion-extension-of-docmentation-to-deal-with-multiple-calls-of-this-function-code-corrections-and-extension/656 "2021-10-04T12:11:36Z")

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Hello, I observed some unexpected and some undocumented behavior of uq\_postProcessInversion.m, that may require some changes in the code and in the manual UQLab - Manual for Bayesian inversion 1) After reading the …

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## [Polynomial Chaos - Quadrature Level Question](https://uqworld.org/t/polynomial-chaos-quadrature-level-question/1255)

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**Author:** [@jjm\_gatech](https://uqworld.org/u/jjm_gatech)\
**Replies:** 1\
**Last updated:** [September 30, 2021, 12:17pm UTC](https://uqworld.org/t/polynomial-chaos-quadrature-level-question/1255 "2021-09-30T12:17:54Z")

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Hey everyone, I am fairly new to UQLab, but have been using Polynomial Chaos Expansions (PCEs) in my work to compare against a few other UQ/UP methods. The sparse features of UQLab are great, especially when computing mo…

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## [Further plot possibilities for results of Bayesian inversion (Suggestions and code example)](https://uqworld.org/t/further-plot-possibilities-for-results-of-bayesian-inversion-suggestions-and-code-example/1105)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 3\
**Last updated:** [April 14, 2021, 8:55am UTC](https://uqworld.org/t/further-plot-possibilities-for-results-of-bayesian-inversion-suggestions-and-code-example/1105 "2021-04-14T08:55:58Z")

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Dear UQLab-Team, thanks for your efforts to created the UQLab Modules 1.4.0, I would like to suggest to add further plot output facilities for results of Bayesian inversion performed by the evaluation of uq\_createAnaly…

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## [Indepedence test or correlation test?](https://uqworld.org/t/indepedence-test-or-correlation-test/1104)

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**Author:** [@marius190](https://uqworld.org/u/marius190)\
**Replies:** 0\
**Last updated:** [March 25, 2021, 5:00pm UTC](https://uqworld.org/t/indepedence-test-or-correlation-test/1104 "2021-03-25T17:00:18Z")

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Hello everyone, Since I am working with uncorrelated data but quite dependant, I had a look at how UQLAB perform statistical hypothesis test before finding an appropriate copula to the input data. What I have seen is th…

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## [Solving problem of \`uq\_print\_uq\_inversion.m\` on dealing with quantiles if the situation is very simple](https://uqworld.org/t/solving-problem-of-uq-print-uq-inversion-m-on-dealing-with-quantiles-if-the-situation-is-very-simple/967)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 1\
**Last updated:** [December 10, 2020, 10:56pm UTC](https://uqworld.org/t/solving-problem-of-uq-print-uq-inversion-m-on-dealing-with-quantiles-if-the-situation-is-very-simple/967 "2020-12-10T22:56:24Z")

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Dear @paulremo, dear all, it seems that I observed a further well-hidden bug, i.e. a bug that only shows up if only one parameter is unknown and also the error distribution is given. In this situation, in the report g…

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## [Copula-based RBDO](https://uqworld.org/t/copula-based-rbdo/928)

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**Author:** [@ali](https://uqworld.org/u/ali)\
**Replies:** 0\
**Last updated:** [November 4, 2020, 7:06am UTC](https://uqworld.org/t/copula-based-rbdo/928 "2020-11-04T07:06:12Z")

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Dear UQLab First and foremost, thanks for your enjoyable and state of the art framework. Based on the discussion in here. Is there any chance for us to use the vine copula structure to demonstrate dependency between bo…

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## [Transport maps in UQLab?](https://uqworld.org/t/transport-maps-in-uqlab/873)

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**Author:** [@drossat](https://uqworld.org/u/drossat)\
**Replies:** 1\
**Last updated:** [October 5, 2020, 6:29am UTC](https://uqworld.org/t/transport-maps-in-uqlab/873 "2020-10-05T06:29:29Z")

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Hello, will transport maps be a new UQLab feature ? I am refering to the optimal transport tools which have been used in (El Mosehly et al. 2012, https://www.sciencedirect.com/science/article/pii/S0021999112003956), for…

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## [Suggestions for \`uq\_display\` and \`uq\_simple\_parser\`](https://uqworld.org/t/suggestions-for-uq-display-and-uq-simple-parser/867)

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**Author:** [@olaf.klein](https://uqworld.org/u/olaf.klein)\
**Replies:** 0\
**Last updated:** [October 1, 2020, 9:02am UTC](https://uqworld.org/t/suggestions-for-uq-display-and-uq-simple-parser/867 "2020-10-01T09:02:39Z")

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Hello, I would like to suggest improvements for the functions uq\_display and uq\_simple\_parser: uq\_display: To be able to autocratically save the generated plots or to adapt them individually, if would be helpful if t…

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## [RBDO: cost model](https://uqworld.org/t/rbdo-cost-model/827)

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**Author:** [@Colette\_Jost](https://uqworld.org/u/Colette_Jost)\
**Replies:** 1\
**Last updated:** [September 2, 2020, 12:48pm UTC](https://uqworld.org/t/rbdo-cost-model/827 "2020-09-02T12:48:25Z")

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Hi I use UQLab version 1.3.0. I think, there might be a typo in the file uq\_initialize\_uq\_rbdo, line 1330. Passing parameters to a cost model does only work after changing this line manually from current\_analysis.Inte…
