A voluntary collective of specialists applying R programming and statistical tools to quality management in Brazilian clinical laboratories.
The LabR Group bridges the gap between statistical science and clinical practice — building free, open-source tools that help Brazilian laboratories achieve excellence through data.
Advanced SQC methods implemented in R — Westgard rules, sigma metrics, OPSpecs charts and beyond.
Automated reference interval computation with the LabRI suite — robust, partitioned, and IFCC-compliant.
Applying clustering, classification and AI to diagnostic problems — from delta checks to result plausibility.
Bias, precision, linearity and measurement uncertainty workflows following CLSI and ISO 15189 standards.
A growing book, blog, presentations and YouTube tutorials — all freely available in Portuguese and English.
All code published on GitHub. Every tool, every analysis, every method is transparent and reproducible.
Subscribe to our YouTube channel for tutorials, project walkthroughs and quality management deep-dives.
Our flagship toolset for computing reference intervals — available as a Shiny app and an AI-powered chatbot.
O Grupo Lab R — também conhecido como Lab R Group, LabR Group ou GrupoLabR — é um coletivo voluntário e sem fins lucrativos, fundado em 2021 e afiliado ao Comitê de Qualidade da SBPC/ML. Reunimos cientistas, médicos patologistas clínicos, farmacêuticos, biomédicos, bioestatísticos e desenvolvedores que aplicam a linguagem R no laboratório clínico para transformar a medicina diagnóstica brasileira.
Nossas frentes: intervalos de referência, controle estatístico de qualidade, validação de métodos seguindo diretrizes CLSI e IFCC, regras de Westgard, métricas Six Sigma, cálculos de incerteza, inteligência artificial e machine learning aplicados ao diagnóstico, e dashboards interativos em R Shiny. Todo o código é aberto, gratuito e reproduzível.
The Lab R Group (Portuguese: Grupo Lab R) is a non-profit volunteer collective of clinical laboratory scientists applying the R programming language to clinical laboratory quality management. We build free, open-source tools for reference intervals, statistical quality control, method validation, and AI-powered diagnostic assistance — aligned with CLSI and IFCC guidelines.
Flagship projects include LabRI Packed (a Shiny app for robust reference-interval
computation with refineR, Horn, Tukey and Harris–Boyd partitioning) and
LabRI Chatbot (an AI assistant grounded in laboratory-medicine literature). All
work is published openly on GitHub under grupolabr.com.