Archive for software

the new DIYABC-RF

Posted in Books, pictures, R, Statistics, Wines with tags , , , , , , , , , , , , , , , , on April 15, 2021 by xi'an

My friends and co-authors from Montpellier have released last month the third version of the DIYABC software, DIYABC-RF, which includes and promotes the use of random forests for parameter inference and model selection, in connection with Louis Raynal’s thesis. Intended as the earlier versions of DIYABC for population genetic applications. Bienvenue!!!

The software DIYABC Random Forest (hereafter DIYABC-RF) v1.0 is composed of three parts: the dataset simulator, the Random Forest inference engine and the graphical user interface. The whole is packaged as a standalone and user-friendly graphical application named DIYABC-RF GUI and available at The different developer and user manuals for each component of the software are available on the same website. DIYABC-RF is a multithreaded software on three operating systems: GNU/Linux, Microsoft Windows and MacOS. One can use the program can be used through a modern and user-friendly graphical interface designed as an R shiny application (Chang et al. 2019). For a fluid and simplified user experience, this interface is available through a standalone application, which does not require installing R or any dependencies and hence can be used independently. The application is also implemented in an R package providing a standard shiny web application (with the same graphical interface) that can be run locally as any shiny application, or hosted as a web service to provide a DIYABC-RF server for multiple users.

congrats, Håvard!!!

Posted in Statistics with tags , , , , , , , , , , , on March 4, 2021 by xi'an

following versions [xkcd reposted]

Posted in Books, Kids, University life with tags , , on November 18, 2019 by xi'an

we have never been unable to develop a reliable predictive model

Posted in Statistics with tags , , , , , , , , , , , , , , , on November 10, 2019 by xi'an

An alarming entry in The Guardian about the huge proportion of councils in the UK using machine-learning software to allocate benefits, detect child abuse or claim fraud. And relying blindly on the outcome of such software, despite their well-documented lack of reliability, uncertainty assessments, and warnings. Blindly in the sense that the impact of their (implemented) decision was not even reviewed, even though a portion of the councils does not consider renewing the contracts. With the appalling statement of the CEO of one software company reported in the title. Blaming further the lack of accessibility [for their company] of the data used by the councils for the impossibility [for the company] of providing risk factors and identifying bias, in an unbelievable newspeak inversion… As pointed out by David Spiegelhalter in the article, the openness should go the other way, namely that the algorithms behind the suggestions (read decisions) should be available to understand why these decisions were made. (A whole series of Guardian articles relate to this as well, under the heading “Automating poverty”.)

BayesComp 20: call for contributed sessions!

Posted in pictures, Statistics, Travel, University life with tags , , , , , , , , , , on March 20, 2019 by xi'an

Just to remind readers of the incoming deadline for BayesComp sessions:

The deadline for providing a title and brief abstract that the session is April 1, 2019. Please provide the names and affiliations of the organizer and the three speakers (the organizer can be one of them). Each session lasts 90 minutes and each talk should be 30 minutes long including Q&A. Contributed sessions can also consist of tutorials on the use of novel software. Decisions will be made by April 15, 2019. Please send your proposals to Christian Robert, co-chair of the scientific committee. We look forward to seeing you at BayesComp 20!

In case you do not feel like organising a whole session by yourself, contact the ISBA section you feel affinity with and suggest it helps building this session together!