Add arrrows to an scplot

add_arrow(
  object,
  case = 1,
  x0,
  y0,
  x1,
  y1,
  color = "black",
  angle = 30,
  length = unit(5, "points"),
  type = "open",
  ends = "last",
  linewidth = 0.7
)

Arguments

object: An scplot object (class scplot) returned from the scplot() function.
case: Numerical vector with the case number or character string. case = "all" for all cases.
x0: Origin x position of the line.
y0: Origin y position of the line.
x1: End x position of the line.
y1: End y position of the line.
color: A character string or a number defining the color of an element.
angle: Angle (in [0,360])
length: Size of the arrow angels.
type: One of "open" or "closed" indicating whether the arrow head should be a closed triangle.
ends: One of "last", "first", or "both", indicating which ends of the line to draw arrow heads.
linewidth: A number with the width of the line.

Value

An object of class scplot (seescplot()) with added element lines.

Examples

data(exampleAB, package = "scan")
p1 <- scplot(exampleAB$Anja)  |>
  add_arrow(case = 1, 2, 70, 6, 55, color = "darkred")