R Weekly 2026-W41 Spreadsheets to gt, shinyreact, Aperiodic Tilings

05 Oct 2026

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This week’s release was curated by Sam Parmar, with help from the R Weekly team members and contributors.

Highlight

• From spreadsheet to gt and back again

• Introducing shinyreact: React UI backed by a Shiny server

• Aperiodic tilings with the de Bruijn method

Insights

• From spreadsheet to gt and back again

• My first attempt at porting a Shiny app failed, and not for a technical reason

• Celebrating the rOpenSci Community

• rOpenSci News Digest, September 2026

• Reproducible compute sessions: pinning the full stack from R version to system libraries

• Introducing shinyreact: React UI backed by a Shiny server

Tutorials

• From a football results API to a half-time/full-time heatmap in R

• mlreserve: machine-learning loss reserving on ‘real-world’ triangles (based on a ‘ChainLadder’ fork)

• Analytics Pipeline for Dashboards, with Python, R and Javascript

• #060: Using bubblewrap for R sandboxing

• Aperiodic tilings with the de Bruijn method

• Records on grid lines and floating point in R

• When integrate() in R returns zero and says OK

• Parameter scale decides what optim() finds

• The delta method: standard errors for derived values

• Maximum likelihood by hand with optim() in R

• What a p-value tells you, and what it does not

• Simulating correlated variables in R

• Probability distributions in R: d, p, q and r

• Repeating an analysis for every site in R

• ggplot2 facets: fixed or free axis scales

• Missing values in summaries: na.rm and false zeros

• Recoding field data in R: ifelse, if_else, case_when

• Factor levels in R: reference groups and empty sites

• Reading Excel field sheets into R

• R Workspaces as Static Websites

Resources

• No more select and copy! {to_cb}: a helper function to pipe outputs to the clipboard

• Historical R help pages, going back to version 0.1

• Updated {rcheology} web app: compare base R functions across historical R versions

• August 2026 Top 40 New CRAN Packages

New Packages

📦 Keep up to date wtih CRANberries 📦

CRAN

• myman 0.1.0 on CRAN: New (fabulous !!) Package

• {presto} 1.1.0: Fast Functions for Differential Expression Using Wilcoxon and AUC

• {mSigSpectra} 0.1.3: Build Mutational-Spectrum Catalogs from Variant Call Format Files

• {netOP} 0.1.2: Network Data Operations and Overlapping Partitions Based Methods for Large Networks

• {mdbx} 0.1.1: Bindings to the ‘libmdbx’ Embedded Key-Value Store

• {pagerankr} 0.1.1: Modular Toolkit for PageRank Calculation

• {pkgcheck} 0.3.2: Package Checks for ‘rOpenSci’

• {qio} 0.1.1: Read and Write ‘Apache Parquet’ Files

• {ROI.plugin.coinclp} 0.1.0: ‘COIN-OR’ ‘Clp’ Plugin for the ‘R’ Optimization Infrastructure

• {VeraCrop} 0.1.0: Yield Gap Analysis Using Comparative Performance Analysis

• {wowi} 1.0.3: Detect Spatial Clusters of High Rates of Acute Malnutrition

• {mariposa} 0.7.3: ‘SPSS’-Compatible Statistical Tools for Survey Data

• {harf} 0.1.0: Adversarial Random Forests for Omics Synthesis

• {GTFShift} 1.0.0: Explore and Analyse General Transit Feed Specification (GTFS) Files with a Focus on Urban Mobility

• {eyeprocess} 0.11.1: Harmonize Eye-Tracking, Pupillometry, Biometrics, and Psychometric Process Data

• {DeltaTools} 0.1.4: DELTA Analytic Tools and Learning Curve Analysis

• {tera} 0.1.0: Generate Text and Documents with the Tera Templating Engine

• {bedrock} 0.1.16: Base Functions for the ‘DescToolsX’ Ecosystem

• {shinysnap} 0.1.0: Save and Restore the State of ‘shiny’ Applications

• {winn} 0.1.5: White Noise Normalization for Mass Spectrometry Profiling Data

• {SurveyNCD} 0.1.0: Survey-Weighted Analysis of Self-Reported Health Indicators

• {trialdiff} 0.2.0: Clinical Trial Data-Cut Change Detection and Impact Assessment

• {chat.api} 0.1.0: Transport-Agnostic Chat Contract

• {Mobius} 1.0: Mobius Transport for Directional Data

• {xmlrectr} 0.1.0: Rectangle Arbitrary ‘XML’ into Analysis-Friendly Tables

• {qpmR} 1.1.0: Quarterly Projection Models for Monetary Policy Analysis

• {datapond} 0.1.0: Query Curated ‘DuckDB’ Databases Built from Public Data

• {insectecol} 1.0.1: Insect Ecology Data Analysis Toolkit

• {cidian} 0.1.0: Read and Parse Chinese Input-Method Dictionaries

• {autoslider.trade} 0.0.1: Slide Automation for Trading Tables, Listings and Figures

• {ivue} 0.1.0: Interactive 3D Visualization of Data and Graphs

• {CPHazard} 0.1.0: Hazard Change Point Models for Different Lifetime Distributions

• {summary2joint} 0.1.0: Joint Distribution Estimation from Marginal Study Summaries

• {lwbgt} 1.0.1: Reference-Compatible Outdoor Wet Bulb Globe Temperature

• {cardiovagal} 0.1.5: Automatic Equivalence Testing for Cross-Species Cardiovagal Homeostasis

• {escapeR} 0.1.0: Escape Room Adventures for Learning R in Ecological Statistics

• {contentvalidR} 0.4.0: Tools for Substantive and Content Validity Pretesting

• {stabplot} 0.0.1: Stability Plots for Lasso Stability Selection

• {ISPAT3D} 0.3.1: Spatial Conditional Association Networks in Registered Tumor Volumes

• {scFlex} 0.1.0: Flexible Conversion Between Single-Cell Data Objects

• {saebenchmarking} 0.1.0: Benchmarking Small Area Estimates and Their Mean Squared Errors

Bioconductor

GitHub or Bitbucket or GitLab

Updated Packages

🔍 Search on R-universe 🔍

• {ggfoundry} 0.4.0: Custom Fillable Shapes for ggplot2, with Independent Outline and Fill Colours - This release adds coffee, porridge and autumn symbols, plus faster rendering of repeated shapes

• RcppFastAD 0.0.6 on CRAN: Agentic Fix

• RcppFastFloat 0.0.6 on CRAN: New Upstream

• pipeflow: v0.4.0 on CRAN

• Multiple tables, saved conversations, and take-home dashboards: querychat R 0.4.0 and Python 0.9.0

• {modeltools} 0.2-25: Tools and Classes for Statistical Models - diffify

• {coin} 1.4-6: Conditional Inference Procedures in a Permutation Test Framework - diffify

• {qap} 0.1-3: Heuristics for the Quadratic Assignment Problem (QAP) - diffify

• {maxLik} 1.6-10: Maximum Likelihood Estimation and Related Tools - diffify

• {ggfortify} 0.4.24: Data Visualization Tools for Statistical Analysis Results - diffify

• {float} 0.3-4: 32-Bit Floats - diffify

• {cleanrmd} 0.2.0: Clean Class-Less ‘R Markdown’ HTML Documents - diffify

• {rtables} 0.6.17: Reporting Tables - diffify

• {censReg} 0.5-40: Censored Regression (Tobit) Models - diffify

• {tram} 1.4-6: Transformation Models - diffify

• {dplR} 1.8.0: Dendrochronology Program Library in R - diffify

• {greybox} 2.0.9: Toolbox for Model Building and Forecasting - diffify

• {projpred} 2.11.0: Projection Predictive Feature Selection - diffify

• {DatabaseConnector} 8.0.0: Connecting to Various Database Platforms - diffify

• {deadwood} 0.9.2: Outlier Detection via Pruning Mutual Reachability Minimum Spanning Trees - diffify

• {StreamCatTools} 0.12.0: Tools for Working with ‘StreamCat’ and ‘LakeCat’ Data - diffify

• {AGHmatrix} 3.0.3: Relationship Matrices for Diploid and Autopolyploid Species - diffify

• {osrm} 6.0.0: Interface Between R and the OpenStreetMap-Based Routing Service OSRM - diffify

• {arulesCBA} 1.2.10: Classification Based on Association Rules - diffify

• {LMMsolver} 1.0.14.1: Linear Mixed Models with Sparse Matrix Methods and Smoothing - diffify

• {mvMORPH} 1.2.3: Multivariate Comparative Tools for Fitting Evolutionary Models to Morphometric Data - diffify

• {inti} 0.7.5: Tools and Statistical Procedures in Plant Science - diffify

• {shazam} 1.4.0: Immunoglobulin Somatic Hypermutation Analysis - diffify

• {spicy} 0.13.0: Publication-Ready Tables for Descriptive Statistics and Regression Models - diffify

• {FCPS} 1.4.3: Fundamental Clustering Problems Suite - diffify

Videos and Podcasts

• Listen to the R-Weekly Highlights Podcast

• Introduction to Machine Learning in Epidemiology with R

• How well do LLMs build Shiny apps? How do we test that? | Karan Gathani | Data Science Lab

• Awesome mapping in R & a new R package search tool | Daniel Chen & Kylie Ainslie | Data Science Lab

• MCP Servers Explained: Hosting MCP Servers on Posit Connect | Workflow Demo Series

• You’re the Base, AI Is the Exponent — with Tareef Kawaf

R Internationally

• Limpiar planillas de Excel complejas en R con {unpivotr}

• Creación de tablas atractivas y personalizables en R con {gt}

• Projections cartographiques : le guide pour ne pas y laisser sa santé mentale

R Project Updates

Updates from R Core:

Upcoming Events in 3 Months

Events in 3 Months:

• A list of R conferences and meetings

• This week’s local R-User and applied stats events

• Weekly R Workshops for Ukraine

Connect

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Quotes of the Week

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