NEWS

snakeplot 0.3.0 (2026-03-16)

New flow parameter on all snake functions: "snake" (boustrophedon, default for most functions) or "natural" (all rows read left-to-right, default for timeline_snake() and sequence_snake()).
New multi_snake() function for faceted multi-construct panels.
New sequence_snake() function for categorical sequence visualization.
New timeline_snake() function for state-transition timelines.
Added Sonsoles Lopez-Pernas as package author.
Bug fixes: survey_sequence arc gradient, survey_snake first end cap, multi_snake end cap polygon arguments, activity_snake arc labels.

10 built-in color palettes via snake_palettes and snake_palette(): 5 diverging (classic, earth, ocean, sunset, berry) and 5 sequential (blues, greens, grays, warm, viridis).
New band_palette parameter for custom band shading colors.
New bar_reverse parameter to draw bars from highest level first.
ema_beeps expanded from 500 sampled rows to full 11 474 beeps.
Tick width capped for sparse daily data to prevent overly thick ticks.
Dot size increased (cex 0.5 → 0.9) for better visibility.
Vignette and README rewritten with snake_palettes$ocean examples.
100% test coverage (292 tests).

Initial release.
survey_snake(): Survey response snake plots with distribution bars, tick marks, inter-item correlation arcs, faceting, and daily EMA support.
activity_snake(): Daily activity timeline with event blocks and rug ticks.
survey_sequence(): Stacked 100% horizontal bar plots in serpentine layout.
sequential_dist(): Sequential palette variant of survey_sequence().
line_snake(): Continuous intensity line plot (experimental).
facet_snake(): Generic multi-panel faceting wrapper.
Three bundled datasets: ema_emotions, student_survey, ema_beeps.