ffaframework (version 0.1.0)

plot_pettitt_test: Plot Results from the Pettitt Change‐Point Test

Description

Creates a two‐panel visualization of the Mann–Whitney–Pettitt test. The upper panel plots the Pettitt \(U_t\) statistic over time along with the significance threshold and potential change point. The lower panel displays the annual maximum series data with an optional trend line, the period mean(s), and potential change point(s).

Usage

plot_pettitt_test(results, show_line = TRUE, ...)

Value

A patchwork object with two ggplot2 panels stacked vertically.

Arguments

results

A list generated by eda_pettitt_test().

show_line

If TRUE (default), draw a fitted line through the data.

...

Optional named arguments: 'title', 'top_xlabel', 'top_ylabel', 'bottom_xlabel' and 'bottom_ylabel'.

See Also

eda_pettitt_test()

Examples

data <- rnorm(n = 100, mean = 100, sd = 10)
years <- seq(from = 1901, to = 2000)
results <- eda_pettitt_test(data, years)
plot_pettitt_test(results)