Plot for the ecp package — ggecpplot • ggchangepoint

The plot for changepoints detected by the ecp package is a line plot for the raw data and the vertical lines representing each changepoint. The x-axis is the row number of the raw data in the original data vector. The plot inherits ggplot2, meaning users can add ggplot2 functions on top the changepoint plot for customization.

Usage

ggecpplot(
  data,
  algorithm = "divisive",
  min_size = 2,
  ...,
  cptline_alpha = 1,
  cptline_color = "blue",
  cptline_type = "solid",
  cptline_size = 0.5
)

Arguments

data: A vector.
algorithm: Either divisive or agglo. divisive is the default.
min_size: Minimum number of observations between change points. By default is 2. This argument is only applied when algorithm = "divisive".
...: Extra arguments to pass on either from e.divisive() or e.agglo().
cptline_alpha: The value of alpha for the vertical changepoint line(s), default is 1, meaning no transparency.
cptline_color: The color for the vertical changepoint line(s), default is blue.
cptline_type: The linetype for the vertical changepoint line(s), default is solid.
cptline_size: The size for the vertical changepoint line(s), default is 0.5.

Value

A line plot with data points along with the vertical lines representing changepoints.

Examples

ggecpplot(c(rnorm(100,0,1),rnorm(100,0,10)))

ggecpplot(c(rnorm(100,0,1),rnorm(100,0,10)))