Draw a horizontal guideline at a specified y-coordinate on a plotgardener page — pageGuideHorizontal • plotgardener

Draw a horizontal guideline at a specified y-coordinate on a plotgardener page

pageGuideHorizontal(
    y,
    default.units = "inches",
    linecolor = "grey55",
    params = NULL,
    ...
)

Arguments

y: A numeric or unit object specifying y-coordinate of guide.
default.units: A string indicating the default units to use if y is only given as a numeric. Default value is default.units = "inches".
linecolor: Character value indicating color of guideline. Default value is linecolor = "grey55".
params: An optional pgParams object containing relevant function parameters.
...: Additional grid graphical parameters. See gpar.

Value

None.

Examples

## Create a page
pageCreate(width = 6, height = 5, default.units = "inches")

## Add red horizontal guideline at y = 2.5 inches
pageGuideHorizontal(y = 2.5, linecolor = "red")