Plot a Shewhart chart with ggplot2 — autoplot.shewhart

Generic autoplot method that dispatches on chart subclass. All versions return a ggplot object that the user can further customise with the usual ggplot2 grammar.

Usage

autoplot.shewhart_chart(
  object,
  show_violations = TRUE,
  show_sigma_zones = FALSE,
  locale = NULL,
  ...
)

Arguments

object: A shewhart_chart object.
show_violations: Logical. Highlight violations with red points? Default TRUE.
show_sigma_zones: Logical. Show 1- and 2-sigma zones as shaded bands? Default FALSE.
locale: Optional override for the chart's stored locale.
...: Passed to subclass-specific methods.

Value

A ggplot object (or, for I-MR / Xbar-R / Xbar-S charts, a list of two ggplot objects with class shewhart_plot_pair that prints them stacked).

Examples

# \donttest{
fit <- shewhart_i_mr(data.frame(y = rnorm(50)), value = y)
ggplot2::autoplot(fit)
#> Warning: Removed 1 row containing missing values or values outside the scale range
#> (`geom_line()`).
#> Warning: Removed 1 row containing missing values or values outside the scale range
#> (`geom_point()`).

# }