A collection of small plotting helpers built on ggplot2 used across the package
to quickly visualize vectors, grouped summaries and time series. All functions return a
ggplot2::ggplot object so you can further customize the theme, scales, and annotations.
Conventions adopted:
Input data generally follows the pattern: first column is an index or category (x), remaining columns
are numeric series; in some functions a long format is expected with columns named x, value, variable.
The colors parameter accepts either a single color or a vector mapped to groups/variables.
Transparency is controlled by alpha where provided.
All helpers set a light theme_bw() baseline and place legends at the bottom by default.
ggplot2