# Persalys usage **URL:** https://persalys.discourse.group/c/persalys-ushow-to-use-the-interface-create-studies-launch-analysis-and-understand-resultage/5.md [Latest](https://persalys.discourse.group/latest.md) · [Categories](https://persalys.discourse.group/categories.md) --- ## [Install pip package within Persalys](https://persalys.discourse.group/t/install-pip-package-within-persalys/143)
**Author:** [@GGarcia](https://persalys.discourse.group/u/GGarcia)\ **Replies:** 0\ **Last updated:** [April 16, 2024, 2:30pm UTC](https://persalys.discourse.group/t/install-pip-package-within-persalys/143 "2024-04-16T14:30:58Z")
The procedure has been updated and simplified Documentation is available here Open Persalys Python console (Tools \> Python console) Type in the following from nopip import install install.modules(\["\", "-… --- ## [Changing Persalys language](https://persalys.discourse.group/t/changing-persalys-language/47)
**Author:** [@dumas](https://persalys.discourse.group/u/dumas)\ **Replies:** 2\ **Last updated:** [February 20, 2024, 4:11pm UTC](https://persalys.discourse.group/t/changing-persalys-language/47 "2024-02-20T16:11:02Z")
Persalys has 2 languages : French and English By default the used language is the one of the computer but it is still possible to force the language manually : Linux : you must launch the appImage as follow : LANG=en … --- ## [About the Persalys usage category](https://persalys.discourse.group/t/about-the-persalys-usage-category/17)
**Author:** [@dumas](https://persalys.discourse.group/u/dumas)\ **Replies:** 0
How to use the interface : create studies, launch analysis and understand results. --- ## [Problem while saving persalys project](https://persalys.discourse.group/t/problem-while-saving-persalys-project/185)
**Author:** [@Flore](https://persalys.discourse.group/u/Flore)\ **Replies:** 10\ **Last updated:** [September 24, 2026, 2:17pm UTC](https://persalys.discourse.group/t/problem-while-saving-persalys-project/185 "2026-09-24T14:17:07Z")
Hello I work with Perslays 20.0 It is installed on my local Windows 11 computer It is the first time I use this version I think, the last version I used is version 16 I began to build a coupling model, and I tried to… --- ## [Post-processing in the Persalys data model,](https://persalys.discourse.group/t/post-processing-in-the-persalys-data-model/181)
**Author:** [@braydi](https://persalys.discourse.group/u/braydi)\ **Replies:** 1\ **Last updated:** [June 15, 2026, 1:09pm UTC](https://persalys.discourse.group/t/post-processing-in-the-persalys-data-model/181 "2026-06-15T13:09:35Z")
Hello everyone, Can we do post-processing in the Persalys data model, for example by adding the sum of two columns? Regards, --- ## [Code coupling with external](https://persalys.discourse.group/t/code-coupling-with-external/176)
**Author:** [@ylg](https://persalys.discourse.group/u/ylg)\ **Replies:** 7\ **Last updated:** [February 4, 2026, 2:11pm UTC](https://persalys.discourse.group/t/code-coupling-with-external/176 "2026-02-04T14:11:07Z")
Bonjour, j’essaye de coupler Persalys à un code exécutable sur Windows. Après avoir suivi le tutoriel, j’ai lancé une évaluation du modèle qui s’est arrêté au milieu de la création du fichier d’entrée avec un message ab… --- ## [Persalys 19.1 - bug while testing a FMU](https://persalys.discourse.group/t/persalys-19-1-bug-while-testing-a-fmu/175)
**Author:** [@gblondet](https://persalys.discourse.group/u/gblondet)\ **Replies:** 1\ **Last updated:** [January 9, 2026, 2:07pm UTC](https://persalys.discourse.group/t/persalys-19-1-bug-while-testing-a-fmu/175 "2026-01-09T14:07:57Z")
Hello, I imported a FMU file into Persalys 19.1 (appimage, on Ubuntu 24 LTS), and I got the following error. I have checked the documentation : Installation — Persalys 19.1 documentation LOG\_STDOUT | info | … --- ## [External coupling tools fail](https://persalys.discourse.group/t/external-coupling-tools-fail/169)
**Author:** [@oouser25](https://persalys.discourse.group/u/oouser25)\ **Replies:** 6\ **Last updated:** [September 19, 2025, 9:36am UTC](https://persalys.discourse.group/t/external-coupling-tools-fail/169 "2025-09-19T09:36:10Z")
Hello, I’m trying to perform a multi-objective optimization of an external model, but it always fails when I check the model, showing the following error (the line number changes when I put some files or not in the Pers… --- ## [Bug report : python model crash](https://persalys.discourse.group/t/bug-report-python-model-crash/172)
**Author:** [@clement.phan](https://persalys.discourse.group/u/clement.phan)\ **Replies:** 1\ **Last updated:** [July 24, 2025, 1:16pm UTC](https://persalys.discourse.group/t/bug-report-python-model-crash/172 "2025-07-24T13:16:33Z")
When evaluating a python model with two return statements (during model modification), the Persalys editor may crash to desktop. This looses all current unsaved work and should be avoided. The ideal case would be an in-… --- ## [Data visualisation with Persalys - Histogram plot](https://persalys.discourse.group/t/data-visualisation-with-persalys-histogram-plot/163)
**Author:** [@Gogira](https://persalys.discourse.group/u/Gogira)\ **Replies:** 1\ **Last updated:** [June 27, 2025, 3:06pm UTC](https://persalys.discourse.group/t/data-visualisation-with-persalys-histogram-plot/163 "2025-06-27T15:06:08Z")
Hi everyone, This post is directly linked to the following post about customization of the histogram plot. On the image above, I ran a data analysis on some data (sample size 40 if that matters) and the resulting hi… --- ## [Problem with download](https://persalys.discourse.group/t/problem-with-download/157)
**Author:** [@Ivan](https://persalys.discourse.group/u/Ivan)\ **Replies:** 3\ **Last updated:** [May 16, 2025, 7:49am UTC](https://persalys.discourse.group/t/problem-with-download/157 "2025-05-16T07:49:22Z")
Hello! I have been trying to download the new version of the program many times, but I can’t. The link sent does not work. The server https://phicloud.phimeca.com/ is not responding. Please help. Best regards --- ## [Persalys for data inference: how to wrap Persalys?](https://persalys.discourse.group/t/persalys-for-data-inference-how-to-wrap-persalys/161)
**Author:** [@vchabri](https://persalys.discourse.group/u/vchabri)\ **Replies:** 2\ **Last updated:** [April 10, 2025, 7:53am UTC](https://persalys.discourse.group/t/persalys-for-data-inference-how-to-wrap-persalys/161 "2025-04-10T07:53:43Z")
Hi, Maybe this sounds completely stupid, but for a study I need to perform about 87 statistical inference studies on datasets of size (n=2000, d=13). So I would like to create a kind of wrapper that uses Persalys as a … --- ## [Install additional python packages in Persalys environment](https://persalys.discourse.group/t/install-additional-python-packages-in-persalys-environment/127)
**Author:** [@Bjerome](https://persalys.discourse.group/u/Bjerome)\ **Replies:** 4\ **Last updated:** [August 7, 2024, 7:54am UTC](https://persalys.discourse.group/t/install-additional-python-packages-in-persalys-environment/127 "2024-08-07T07:54:29Z")
Hi everyone, I’m facing an issue trying to import a particular package called ‘h5py’ (HDF5 for Python — h5py 3.15.1 documentation) in a Python script. In the definition window of “Coupling model”, I call for the script… --- ## [Running on multi core](https://persalys.discourse.group/t/running-on-multi-core/147)
**Author:** [@jenrei](https://persalys.discourse.group/u/jenrei)\ **Replies:** 2\ **Last updated:** [July 12, 2024, 3:41pm UTC](https://persalys.discourse.group/t/running-on-multi-core/147 "2024-07-12T15:41:11Z")
Hi, I tried Persalys on Windows (Exe-Installer) and Linux (AppImage) OS. I have set the Tools-\>Settings “Number of processes” to the number of available cores. When I want to run a Sobol analysis an set the batch size a… --- ## [Customize the number of histogram bars](https://persalys.discourse.group/t/customize-the-number-of-histogram-bars/142)
**Author:** [@braydi](https://persalys.discourse.group/u/braydi)\ **Replies:** 1\ **Last updated:** [January 30, 2024, 2:42pm UTC](https://persalys.discourse.group/t/customize-the-number-of-histogram-bars/142 "2024-01-30T14:42:58Z")
Hello, Can we customize the number of histogram bars for the data in Persalys (data model)? Thanks in advance --- ## [\[Data model\] Export a final dataset](https://persalys.discourse.group/t/data-model-export-a-final-dataset/130)
**Author:** [@vchabri](https://persalys.discourse.group/u/vchabri)\ **Replies:** 2\ **Last updated:** [November 22, 2023, 8:42am UTC](https://persalys.discourse.group/t/data-model-export-a-final-dataset/130 "2023-11-22T08:42:01Z")
Hi Persalys Dev Team, I am a great fan of Persalys (v13.0.2 linux ). As a user, I mostly spend my time analysing (real or simulated) data sets with it by using a ‘Data model’ (e.g., to check whether there are some mult… --- ## [Persalys crashes on save](https://persalys.discourse.group/t/persalys-crashes-on-save/138)
**Author:** [@ssbodda](https://persalys.discourse.group/u/ssbodda)\ **Replies:** 7\ **Last updated:** [October 2, 2023, 7:48am UTC](https://persalys.discourse.group/t/persalys-crashes-on-save/138 "2023-10-02T07:48:14Z")
Hi all, whenever I click save at any stage, Persalys (windows 10 version) crashes. We didn’t find any log file or error message. Is there any fix for this? Best regards Saran --- ## [Path setting for Python models](https://persalys.discourse.group/t/path-setting-for-python-models/136)
**Author:** [@MerlinKeller](https://persalys.discourse.group/u/MerlinKeller)\ **Replies:** 3\ **Last updated:** [September 29, 2023, 8:00am UTC](https://persalys.discourse.group/t/path-setting-for-python-models/136 "2023-09-29T08:00:33Z")
Hi to all Persalysers, As indicated in the title, with @josephmure we have created a Python model, which needs to import an external Python library. To do this, we had to set manually the path in the Python script defin… --- ## [Survival analysis in Persalys?](https://persalys.discourse.group/t/survival-analysis-in-persalys/134)
**Author:** [@efekhari](https://persalys.discourse.group/u/efekhari)\ **Replies:** 1\ **Last updated:** [August 16, 2023, 8:12am UTC](https://persalys.discourse.group/t/survival-analysis-in-persalys/134 "2023-08-16T08:12:43Z")
Hi everyone, First of all, thank you for developing an excellent graphical tool for uncertainty quantification. I was wondering if you were considering integrating a survival analysis to your inference tools. I think t… --- ## [Documentation on the algorithms and their theory](https://persalys.discourse.group/t/documentation-on-the-algorithms-and-their-theory/135)
**Author:** [@GPSalachs](https://persalys.discourse.group/u/GPSalachs)\ **Replies:** 1\ **Last updated:** [August 16, 2023, 8:09am UTC](https://persalys.discourse.group/t/documentation-on-the-algorithms-and-their-theory/135 "2023-08-16T08:09:26Z")
Hello, i would like to ask for documentation on the calibration and optimization algorithms and the theory behind them. If you could please provide some refferences! Thank you very much, Happy Summer! --- ## [Issue with launching calculation involving code\_saturne, Persalys, and SALOME](https://persalys.discourse.group/t/issue-with-launching-calculation-involving-code-saturne-persalys-and-salome/125)
**Author:** [@freddy.fang](https://persalys.discourse.group/u/freddy.fang)\ **Replies:** 4\ **Last updated:** [July 5, 2023, 1:43am UTC](https://persalys.discourse.group/t/issue-with-launching-calculation-involving-code-saturne-persalys-and-salome/125 "2023-07-05T01:43:27Z")
Hi everyone, I’m currently working on launching a calculation that requires the coupling of code\_saturne & Persalys(in Linux). I want to use the ‘Design of experiments’ feature so that I can launch a series of CFD calcu… --- ## [Persalys and Code\_Aster coupling in Linux Windows](https://persalys.discourse.group/t/persalys-and-code-aster-coupling-in-linux-windows/124)
**Author:** [@GPSalachs](https://persalys.discourse.group/u/GPSalachs)\ **Replies:** 2\ **Last updated:** [May 2, 2023, 11:36am UTC](https://persalys.discourse.group/t/persalys-and-code-aster-coupling-in-linux-windows/124 "2023-05-02T11:36:09Z")
Hello, is there a guide to explaing the steps of coupling code\_aster and Persalys without going via SalomeMeca? --- ## [Tag management for uncertain parameters](https://persalys.discourse.group/t/tag-management-for-uncertain-parameters/122)
**Author:** [@Burbeau](https://persalys.discourse.group/u/Burbeau)\ **Replies:** 1\ **Last updated:** [March 31, 2023, 8:18am UTC](https://persalys.discourse.group/t/tag-management-for-uncertain-parameters/122 "2023-03-31T08:18:01Z")
I would like to couple persalys with an external calculation code. I have two questions… In my input file, a token @L@ is linked with un length variable L. I would like to reuse the value of the variable L to initiali… --- ## [How to deal with vectorial outputs](https://persalys.discourse.group/t/how-to-deal-with-vectorial-outputs/114)
**Author:** [@Burbeau](https://persalys.discourse.group/u/Burbeau)\ **Replies:** 3\ **Last updated:** [January 30, 2023, 9:40am UTC](https://persalys.discourse.group/t/how-to-deal-with-vectorial-outputs/114 "2023-01-30T09:40:03Z")
I would like to couple Persalys with my own code in order to do sensitivity analysis. The outputs i have to deal with are 1D profils. I don’t know how to define 1D outputs in the definition of the coupling model. --- ## [Metamodels from Data models](https://persalys.discourse.group/t/metamodels-from-data-models/105)
**Author:** [@Flore](https://persalys.discourse.group/u/Flore)\ **Replies:** 5\ **Last updated:** [December 8, 2022, 4:42pm UTC](https://persalys.discourse.group/t/metamodels-from-data-models/105 "2022-12-08T16:42:01Z")
Hello, Bonjour I just tried to build a meta-model based on a DATA model (import a CSV file) and Q2 factor is very bad this DATA model comes from another Persalys DOE performed for an Ansys coupling model, I export DOE … --- ## [Persalys is great!](https://persalys.discourse.group/t/persalys-is-great/108)
**Author:** [@alban.md](https://persalys.discourse.group/u/alban.md)\ **Replies:** 1\ **Last updated:** [December 6, 2022, 4:18pm UTC](https://persalys.discourse.group/t/persalys-is-great/108 "2022-12-06T16:18:56Z")
Hi everyone, Just wanted to let you know that, although I probably use no more than 1% of Persalys, it is a great tool that has helped me to study large datasets. This is something I was not familiar with, but an OpenTU… --- ## [Using Persalys as a data visualization tool: questions and suggestions](https://persalys.discourse.group/t/using-persalys-as-a-data-visualization-tool-questions-and-suggestions/104)
**Author:** [@vchabri](https://persalys.discourse.group/u/vchabri)\ **Replies:** 4\ **Last updated:** [November 25, 2022, 11:04am UTC](https://persalys.discourse.group/t/using-persalys-as-a-data-visualization-tool-questions-and-suggestions/104 "2022-11-25T11:04:26Z")
Hi all, I am a (quite) new Persalys user (under v12.0.1) and I am mainly using it (until now) as a “data visualization and inference tool”, which means that I import some .csv data files and I mostly build data models. … --- ## [Help Persalys Graphics for Morris screening](https://persalys.discourse.group/t/help-persalys-graphics-for-morris-screening/92)
**Author:** [@Flore](https://persalys.discourse.group/u/Flore)\ **Replies:** 2\ **Last updated:** [October 24, 2022, 8:24am UTC](https://persalys.discourse.group/t/help-persalys-graphics-for-morris-screening/92 "2022-10-24T08:24:08Z")
Hello We did a Morris screening study with persalys In performed graphics, a dashed line “limite sans effet”/ “unfluential limit” is drawn But how is defined this limit ? Can user change this limit value/choice ? In… --- ## [Error of one computation during an LHS DOE](https://persalys.discourse.group/t/error-of-one-computation-during-an-lhs-doe/90)
**Author:** [@Flore](https://persalys.discourse.group/u/Flore)\ **Replies:** 5\ **Last updated:** [June 23, 2022, 10:09am UTC](https://persalys.discourse.group/t/error-of-one-computation-during-an-lhs-doe/90 "2022-06-23T10:09:22Z")
Hello everyone I have a problem : I am executing an Ansys coupling model with persalys, and one of the points to simulate is not computable, Ansys stops with an error and persalys add a line of “nan” (not “Nan”) in cac… --- ## [Impossible check model while coupling with code\_saturne](https://persalys.discourse.group/t/impossible-check-model-while-coupling-with-code-saturne/82)
**Author:** [@Ru.CHEN](https://persalys.discourse.group/u/Ru.CHEN)\ **Replies:** 15\ **Last updated:** [April 26, 2022, 12:24pm UTC](https://persalys.discourse.group/t/impossible-check-model-while-coupling-with-code-saturne/82 "2022-04-26T12:24:32Z")
Hello, I’m using persalys in Linux by running the AppImage. I want to link with code\_saturne (CFD solver) to do sensitivity analysis. However, when I finish the definition of input parameters, that is to say the templat… [Next page](https://persalys.discourse.group/c/persalys-ushow-to-use-the-interface-create-studies-launch-analysis-and-understand-resultage/5.md?page=1)