Data-driven-visualization – CSV-driven concentric arc charts with configurable stages and titles

The ddv package wraps wheelchart and datatool to draw concentric arc charts from CSV data. It supports category filtering, numeric and multi-column sorting, per-row colors, RGB colors, gradients, and configurable stage labels, titles, typography, and wheelchart options. The manual contains fourteen worked examples with source listings beside their rendered results. The package and its documentation are tested with LuaLaTeX; no shell escape or Python is required to use the package or build the documentation.

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