Renders a multi-group radar chart using ggplot2 + coord_polar().
create_radar_viz(data, metrics, hrvar, fill_missing = "zero", caption = NULL)ggplot object.
Output table from create_radar_calc().
Character vector of metric column names.
Character string of grouping column name.
Character string specifying how to handle missing values.
If "zero" (default), fill NA values as 0 for plotting. This ensures
polygons close properly in the radar visualization.
Character string for the plot caption. Typically the output
of extract_date_range(data, return = "text") plus an index-mode label,
as constructed by create_radar(). Defaults to NULL (no caption).