Runs changepoint detection inside the ggplot pipeline. Useful for
quick exploration: ggplot(df, aes(t, y)) + geom_line() +
stat_changepoint(method = "pelt"). Draws vertical lines at detected
changepoint locations.
Usage
stat_changepoint(
mapping = NULL,
data = NULL,
geom = "vline",
position = "identity",
...,
method = "pelt",
change_in = "mean",
na.rm = FALSE,
show.legend = NA
)Arguments
- mapping
Aesthetic mappings.
- data
A data frame.
- geom
The geometric object to use (default: "vline").
- position
Position adjustment.
- ...
Other arguments passed to the geom.
- method
Detection method (passed to
cpt_detect).- change_in
What to detect change in (passed to
cpt_detect).- na.rm
If
FALSE, missing values are removed.- show.legend
Whether to show legend.