PSIAIMS/CAMIS
Aug 2025 – Jul 2026
8 Months active
Languages Used
MarkdownRR MarkdownSASCSVPython
Technical Skills
DocumentationR ProgrammingStatistical AnalysisRData AnalysisSAS
Yannick Vandendijck
PROFILE
Yannick Vandendijck
Over eight months, contributed to the PSIAIMS/CAMIS repository by building robust statistical analysis tooling and cross-language validation frameworks. Developed features such as enhanced Wilcoxon rank sum and two-sample t-test documentation, R and SAS integration for statistical workflows, and a translation framework for SAS PROC GLIMMIX and LIFETEST models into R. Leveraged R, SAS, and Python to improve data pipelines, automate documentation with GitHub Actions and Quarto, and ensure reproducibility through comprehensive guides and validation scenarios. Focused on technical writing, statistical modeling, and data visualization, the work emphasized maintainability, onboarding efficiency, and alignment of analytical results across environments.
Overall Statistics
Feature vs Bugs
82%Features
Repository Contributions
20Total
Bugs
2
Commits
20
Features
9
Lines of code
78,222
Activity Months8
Your Network
35 peopleSame Organization
@its.jnj.com2
DRizhinaMember
SarahMember
Shared Repositories
33
Work History
July 2026
2 Commits • 1 Features
Jul 1, 2026July 2026 - PSIAIMS/CAMIS: Delivered cross-language translation and validation capabilities for SAS PROC GLIMMIX and LIFETEST. Implemented an R translation framework with documentation and a validation workflow, plus GitHub Actions workflows to render and deploy Quarto-based documentation. Established a cross-environment framework to validate statistical methods across R and SAS environments, accompanied by a comprehensive guide and ten validation scenarios to ensure reproducibility and maintainability. Commits reflect consolidation of translation work and artifact updates.
2 Commits • 1 Features
Jul 1, 2026July 2026 - PSIAIMS/CAMIS: Delivered cross-language translation and validation capabilities for SAS PROC GLIMMIX and LIFETEST. Implemented an R translation framework with documentation and a validation workflow, plus GitHub Actions workflows to render and deploy Quarto-based documentation. Established a cross-environment framework to validate statistical methods across R and SAS environments, accompanied by a comprehensive guide and ten validation scenarios to ensure reproducibility and maintainability. Commits reflect consolidation of translation work and artifact updates.
July 2026
May 2026
5 Commits • 2 Features
May 1, 2026May 2026 monthly summary for PSIAIMS/CAMIS focusing on delivering business value through robust data analysis capabilities and reliable data pipelines. Key features delivered: - R and SAS integration enhancements for statistical analyses, including cross-language comparison (R, SAS, Python). New R Markdown documents support cross-language analyses and CI workflow updates enable automated rendering and deployment of documentation. Commits reflect PR merge (PR570) and environment consistency (renv.lock). Major bugs fixed: - Fixed data reading pipeline for Weighted-log-rank analysis by correcting a syntax error in the R reader and correcting the SAS data file path. This improves reliability and reduces analysis failures. Commits update the Weighted-log-rank.qmd twice. Additional improvements: - Updated the statistical method table to reflect newly supported methodologies and data points, ensuring analyses stay current and reproducible. Commit updating stat_method_tbl.csv. Overall impact and accomplishments: - Strengthened cross-language analytical capabilities, improved documentation automation and CI/CD, and increased reproducibility, reliability, and speed of statistical analyses. Technologies/skills demonstrated: - R, SAS, cross-language analytics, R Markdown, CI workflows, environment management with renv, data pipeline robustness, and documentation automation.
May 2026
5 Commits • 2 Features
May 1, 2026May 2026 monthly summary for PSIAIMS/CAMIS focusing on delivering business value through robust data analysis capabilities and reliable data pipelines. Key features delivered: - R and SAS integration enhancements for statistical analyses, including cross-language comparison (R, SAS, Python). New R Markdown documents support cross-language analyses and CI workflow updates enable automated rendering and deployment of documentation. Commits reflect PR merge (PR570) and environment consistency (renv.lock). Major bugs fixed: - Fixed data reading pipeline for Weighted-log-rank analysis by correcting a syntax error in the R reader and correcting the SAS data file path. This improves reliability and reduces analysis failures. Commits update the Weighted-log-rank.qmd twice. Additional improvements: - Updated the statistical method table to reflect newly supported methodologies and data points, ensuring analyses stay current and reproducible. Commit updating stat_method_tbl.csv. Overall impact and accomplishments: - Strengthened cross-language analytical capabilities, improved documentation automation and CI/CD, and increased reproducibility, reliability, and speed of statistical analyses. Technologies/skills demonstrated: - R, SAS, cross-language analytics, R Markdown, CI workflows, environment management with renv, data pipeline robustness, and documentation automation.
March 2026
3 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for CAMIS (PSIAIMS). Focused on improving documentation quality and reducing user friction. Delivered a targeted feature: Binomial test documentation cleanup and clarification, improving developer and user experience in PSIAIMS/CAMIS. Overall impact: Clearer docs reduce onboarding time and support load, with explicit notes preventing misinterpretation of ggplot2 quantile behavior. No major bugs documented in this period; maintenance work centered on documentation and repository clarity.
3 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for CAMIS (PSIAIMS). Focused on improving documentation quality and reducing user friction. Delivered a targeted feature: Binomial test documentation cleanup and clarification, improving developer and user experience in PSIAIMS/CAMIS. Overall impact: Clearer docs reduce onboarding time and support load, with explicit notes preventing misinterpretation of ggplot2 quantile behavior. No major bugs documented in this period; maintenance work centered on documentation and repository clarity.
March 2026
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 (PSIAIMS CAMIS): Delivered an enhanced two-sample t-test with updated implementation and thorough documentation. Added clear examples for both equal and unequal variances and clarified the use of the Satterthwaite degrees of freedom, reducing misapplication risk and improving analyst confidence. The change was committed to PSIAIMS/CAMIS and closes issue #308.
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 (PSIAIMS CAMIS): Delivered an enhanced two-sample t-test with updated implementation and thorough documentation. Added clear examples for both equal and unequal variances and clarified the use of the Satterthwaite degrees of freedom, reducing misapplication risk and improving analyst confidence. The change was committed to PSIAIMS/CAMIS and closes issue #308.
January 2026
1 Commits • 1 Features
Jan 1, 2026Concise monthly summary for 2026-01 highlighting delivered workflow improvements for treatment effect analysis in CAMIS, with a focus on accuracy, data collection, and reproducibility.
1 Commits • 1 Features
Jan 1, 2026Concise monthly summary for 2026-01 highlighting delivered workflow improvements for treatment effect analysis in CAMIS, with a focus on accuracy, data collection, and reproducibility.
January 2026
October 2025
2 Commits • 1 Features
Oct 1, 2025October 2025: Implemented CMH procedure enhancements in CAMIS, introducing Woolf test for homogeneity of odds ratios, removing the epiDisplay dependency, and improving cross-language consistency between R and SAS CMH code. Updated examples, variable descriptions, and error handling documentation; aligned results across R and SAS and clarified CMH-related documentation.
October 2025
2 Commits • 1 Features
Oct 1, 2025October 2025: Implemented CMH procedure enhancements in CAMIS, introducing Woolf test for homogeneity of odds ratios, removing the epiDisplay dependency, and improving cross-language consistency between R and SAS CMH code. Updated examples, variable descriptions, and error handling documentation; aligned results across R and SAS and clarified CMH-related documentation.
September 2025
5 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for PSIAIMS/CAMIS focusing on delivering business value through robust statistical tooling, improved documentation, and assets management. Delivered a critical bug fix to align Wilcoxon rank-sum behavior with standard practices, enhanced user-facing documentation and visuals for Rank-Sum tests, and reorganized image assets for easier maintainability and faster onboarding.
5 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for PSIAIMS/CAMIS focusing on delivering business value through robust statistical tooling, improved documentation, and assets management. Delivered a critical bug fix to align Wilcoxon rank-sum behavior with standard practices, enhanced user-facing documentation and visuals for Rank-Sum tests, and reorganized image assets for easier maintainability and faster onboarding.
September 2025
August 2025
1 Commits • 1 Features
Aug 1, 20252025-08 Monthly performance summary: Delivered focused Wilcoxon rank sum test documentation enhancement in PSIAIMS/CAMIS. Added asht package as a third implementation option and expanded explanations of location parameters and confidence intervals across R packages, resulting in a more comprehensive, reusable guide for performing Wilcoxon tests in R. Impact: improved analyst onboarding, cross-package usability, and foundation for broader non-parametric testing tooling. Technologies/skills demonstrated: technical documentation, R package familiarity, cross-package analysis, and version-controlled collaboration (commit: da1d761d86683751302cd71f8050d988347096f2).
August 2025
1 Commits • 1 Features
Aug 1, 20252025-08 Monthly performance summary: Delivered focused Wilcoxon rank sum test documentation enhancement in PSIAIMS/CAMIS. Added asht package as a third implementation option and expanded explanations of location parameters and confidence intervals across R packages, resulting in a more comprehensive, reusable guide for performing Wilcoxon tests in R. Impact: improved analyst onboarding, cross-package usability, and foundation for broader non-parametric testing tooling. Technologies/skills demonstrated: technical documentation, R package familiarity, cross-package analysis, and version-controlled collaboration (commit: da1d761d86683751302cd71f8050d988347096f2).
Activity
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Quality Metrics
Correctness96.6%
Maintainability93.6%
Architecture93.0%
Performance89.4%
AI Usage27.0%
Skills & Technologies
Programming Languages
CSVMarkdownPythonRR MarkdownSAS
Technical Skills
Data AnalysisData ScienceDocumentationGitHub ActionsPython programmingQuartoRR ProgrammingR programmingSASSAS programmingStatistical AnalysisStatistical ModelingTechnical Writingdata analysis
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