Skill Claude CodeCodex
Expert guidance for the collapse R package (v2.x) — fast, class-agnostic data transformation and statistical computing in R, and the core of the fastverse. Covers the Fast Statistical Functions (fmean/fsum/fmedian/fmode/fnth/fndistinct … with their g/w/TRA arguments), grouping objects (GRP, qF, qG, group, fgroupby…
Skill Claude CodeCodex
Expert guidance for the fastverse in R — the high-performance suite built on data.table, collapse, kit and magrittr, loaded with library(fastverse). Covers how the loader itself works (fastverseextend/detach/reset/sitrep/ update/child, .fastverse project config files, options, OpenMP threading across the three…
Skill Claude CodeCodex
Create publication-quality scientific figures in R for academic papers and reports: ggplot2 charts (bar, time-series/line, scatter, stacked/area, facet), tmap v4 choropleth maps, pheatmap heatmaps, migest chord/flow diagrams, and igraph networks — all in a consistent "house style" built on a prettyplot() theme…