gf_line_interactive: Interactive line plots

In ggformula: Formula Interface to the Grammar of Graphics

Interactive line plots

Description

Creates an interactive plot using ggiraph. This function extends gf_line() with interactive features like tooltips and clickable elements.

Arguments

object	When chaining, this holds an object produced in the earlier portions of the chain. Most users can safely ignore this argument.
gformula	A formula with shape y ~ x. Faceting can be achieved by including | in the formula.
data	The data to be displayed in this layer.
tooltip	A formula specifying a variable for tooltips, or a character vector.
data_id	A formula or character vector specifying data identifiers for interactive selection.
...	Additional arguments passed to the underlying geom.
alpha, color, size, shape, fill, group, stroke	Aesthetics passed to the geom.
xlab, ylab, title, subtitle, caption	Labels for the plot.
show.legend	Logical. Should this layer be included in the legends?
show.help	Logical. If TRUE, display some minimal help.
inherit	Logical. If TRUE, inherit aesthetics from previous layers.
environment	An environment in which to evaluate the formula.

Value

A gg object that can be displayed with gf_girafe().

Additional interactive features

• onclick: JavaScript code (as character string) executed when clicking elements.

• Additional ggiraph aesthetics may be available depending on the geom.

See Also

gf_line(), gf_girafe()

Examples

if (require(mosaicData)) {
  Weather |>
  gf_line_interactive(
    high_temp ~ date,
    color = ~city,
    show.legend = FALSE,
    tooltip = ~city,
    data_id = ~city
  ) |>
  gf_girafe(
    width = 8, height = 3,
    options = list(
      opts_hover_inv(css = "opacity:0.4;"),
      opts_hover(css = "stroke-width:2;", nearest_distance = 40),
      opts_tooltip(use_cursor_pos = FALSE, offx = 0, offy = -10)
    )
  )
}

ggformula documentation built on Jan. 17, 2026, 9:06 a.m.