ref_hline: Horizontal reference line glyph

In garrettgman/ggsubplot: Explore Complex Data by Embedding Subplots

Description

ref_hline creates a layer of horizontal reference lines to be plotted behind a layer of glyphs. Each line spans the full width of the glyph. The thickness of the line can be adjusted with the thickness argument. Reference lines make it easier to determine the location of an object within a glyph and to compare objects across glyphs. Reference lines can also convey information on their own through fill, colour, alpha, linetype, and (line) size mappings. By default the fill parameter of a reference line is set to white.

Usage

ref_hline(mapping = NULL, thickness = 0.2, fill = "white", ...)

Arguments

mapping	An aesthetic mapping, usually constructed with aes.
thickness	the thickness of the line as a proportion of the overall glyph height. Defaults to 0.2.
fill	The color, as a character string, to be used as the fill if fill is not specified in the mapping
...	other arguments to be used as parameters in the reference box layer

Details

ref_hline is a second order function. It returns a function that can be used to create a layer of reference lines with the specified mapping and parameters. The output of ref_hline is intended to be passed as the reference argument for geom_subplot or geom_subplot2d.

See Also

ref_box and ref_vline

garrettgman/ggsubplot documentation built on May 16, 2019, 5:39 p.m.