mark_draw: Define the links to connect the marked observations

In ggalign: A 'ggplot2' Extension for Consistent Axis Alignment

Define the links to connect the marked observations

Description

This function allows users to define links between marked observations and plot panel (e.g., for creating visual connections for related data), which could help explain the observations.

Usage

mark_draw(.draw, ...)

Arguments

.draw

A function used to draw the links. The function must return a grob() object. If the function does not return a valid grob, nothing will be drawn. The input data for the function must contain two arguments: a data frame for the panel side coordinates and a data frame for the marked observation coordinates.

...

<dyn-dots> A list of formulas, where each side of the formula should be an integer or character index of the original data, or a range_link() object defining the linked observations. Use NULL to indicate no link on that side. You can also combine these by wrapping them into a single list(). If only the left-hand side of the formula exists, you can input it directly. For integer indices, wrap them with I() to use the ordering from the layout. You can also use waiver() to inherit values from the other group.

See Also

• mark_line()

• mark_tetragon()

• mark_triangle()

• .mark_draw()

ggalign documentation built on June 8, 2025, 11:25 a.m.