echarts4r-shiny: Shiny bindings for echarts4r

Description

Output and render functions for using echarts4r within Shiny applications and interactive Rmd documents.

Usage

echarts4rOutput(outputId, width = "100%", height = "400px")
renderEcharts4r(expr, env = parent.frame(), quoted = FALSE)
echarts4rProxy(
  id,
  data,
  x,
  timeline = FALSE,
  session = shiny::getDefaultReactiveDomain(),
  reorder = TRUE
)
echarts4r_proxy(
  id,
  data,
  x,
  timeline = FALSE,
  session = shiny::getDefaultReactiveDomain(),
  reorder = TRUE
)

Arguments

outputId: output variable to read from.
width, height: Must be a valid CSS unit (like '100%', '400px', 'auto') or a number, which will be coerced to a string and have 'px' appended.
expr: An expression that generates a echarts4r
env: The environment in which to evaluate expr.
quoted: Is expr a quoted expression (with quote())? This is useful if you want to save an expression in a variable.
id: Target chart id.
data: A data.frame.
x: Column name containing x axis.
timeline: Set to TRUE to build a timeline, see timeline section.
session: Shiny session.
reorder: Set to FALSE to not reorder numeric x axis values.

Callbacks

id_brush: returns data on brushed data points.
id_legend_change: returns series name of legend selected/unselected.
id_clicked_data: returns data of clicked data point.
id_clicked_data_value: returns value of clicked data point.
id_clicked_row: returns row number of clicked data point.
id_clicked_serie: returns name of serie of clicked data point.
id_mouseover_data: returns data on hovered data point.
id_mouseover_data_value: returns value of hovered data point.
id_mouseover_row: returns row o hovered data point.
id_mouseover_serie: returns name of serie of hovered data point.
id_dragged_annotation: returns data on dragged annotation.

Proxies

The echarts4rProxy function returns a proxy for chart which allows manipulating a drawn chart, adding data, adding or removing series, etc. without redrawing the entire chart.

e_append1_p & e_append2_p
e_showtip_p & e_hidetip_p
e_highlight_p & e_downplay_p
e_focus_adjacency & e_unfocus_adjacency
e_dispatch_action_p
e_execute
e_remove_serie_p

Details

The chart is created inside a parent '<div>' element, the dimensions of which are controlled by the 'width' and 'height' arguments. When these dimensions are small, it is possible that the chart 'grid' resizes to a size larger than the parent, which might result in unexpected size given the input arguments. To disable this automatic readjustment, define a static e_grid like the following: 'e_grid(e = current_chart, top = 0, left = 20, right = 0, bottom = 20)'.