e_scatter {echarts4r}

Scatter

Description

Add scatter serie.

Usage

e_scatter(
  e,
  serie,
  size,
  bind,
  symbol = NULL,
  symbol_size = 1,
  scale = e_scale,
  scale_js = "function(data){ return data[3];}",
  name = NULL,
  coord_system = "cartesian2d",
  jitter_factor = 0,
  jitter_amount = NULL,
  legend = TRUE,
  y_index = 0,
  x_index = 0,
  rm_x = TRUE,
  rm_y = TRUE,
  ...
)

e_effect_scatter(
  e,
  serie,
  size,
  bind,
  symbol = NULL,
  symbol_size = 1,
  scale = e_scale,
  scale_js = "function(data){ return data[3];}",
  name = NULL,
  coord_system = "cartesian2d",
  legend = TRUE,
  y_index = 0,
  x_index = 0,
  rm_x = TRUE,
  rm_y = TRUE,
  ...
)

e_scale(x)

e_scatter_(
  e,
  serie,
  size = NULL,
  bind = NULL,
  symbol = NULL,
  symbol_size = 1,
  scale = e_scale,
  scale_js = "function(data){ return data[3];}",
  name = NULL,
  coord_system = "cartesian2d",
  jitter_factor = 0,
  jitter_amount = NULL,
  legend = TRUE,
  y_index = 0,
  x_index = 0,
  rm_x = TRUE,
  rm_y = TRUE,
  ...
)

e_effect_scatter_(
  e,
  serie,
  size = NULL,
  bind = NULL,
  symbol = NULL,
  symbol_size = 1,
  scale = e_scale,
  scale_js = "function(data){ return data[3];}",
  name = NULL,
  coord_system = "cartesian2d",
  legend = TRUE,
  y_index = 0,
  x_index = 0,
  rm_x = TRUE,
  rm_y = TRUE,
  ...
)

Arguments

e

An echarts4r object as returned by e_charts or a proxy as returned by echarts4rProxy.

serie

Column name of serie to plot.

size

Column name containing size of points.

bind

Binding between datasets, namely for use of e_brush.

symbol

The symbol to use, default to NULL, can also be circle, rect, roundRect, triangle, diamond, pin, arrow, or none.

symbol_size

Size of points, either an integer or a vector of length 2, if size is not NULL or missing it is applied as a multiplier to scale.

scale

A function that takes a vector of numeric and returns a vector of numeric of the same length. You can disable the scaling by setting it to NULL.

scale_js

the JavaScript scaling function.

name

name of the serie.

coord_system

Coordinate system to plot against, see examples.

jitter_factor, jitter_amount

Jitter points, passed to jitter.

legend

Whether to add serie to legend.

x_index, y_index

Indexes of x and y axis.

rm_x, rm_y

Whether to remove x and y axis, only applies if coord_system is not set to cartesian2d.

...

Any other option to pass, check See Also section.

x

A vector of integers or numeric.

Scaling function

defaults to e_scale which is a basic function that rescales size between 1 and 20 for that makes for decent sized points on the chart.

See Also

Additional arguments scatter, Additional arguments for effect scatter

Examples

# scaling
e_scale(c(1, 1000))

mtcars |>
  e_charts(mpg) |>
  e_scatter(wt, qsec)

# custom function
my_scale <- function(x) scales::rescale(x, to = c(2, 50))

echart <- mtcars |>
  e_charts(mpg) |>
  e_scatter(wt, qsec, scale = my_scale)

echart

# rescale color too
echart |>
  e_visual_map(wt, scale = my_scale)

# or
echart |>
  e_visual_map(min = 2, max = 50)

# disable scaling
mtcars |>
  e_charts(qsec) |>
  e_scatter(wt, mpg, scale = NULL)

# jitter point
mtcars |>
  e_charts(cyl) |>
  e_scatter(wt, symbol_size = 5) |>
  e_scatter(wt, jitter_factor = 2, legend = FALSE)

# examples
USArrests |>
  e_charts(Assault) |>
  e_scatter(Murder, Rape) |>
  e_effect_scatter(Rape, Murder, y_index = 1) |>
  e_grid(index = c(0, 1)) |>
  e_tooltip()

iris |>
  e_charts_("Sepal.Length") |>
  e_scatter_(
    "Sepal.Width",
    symbol_size = c(8, 2),
    symbol = "rect"
  ) |>
  e_x_axis(min = 4)

quakes |>
  e_charts(long) |>
  e_geo(
    roam = TRUE,
    boundingCoords = list(
      c(185, -10),
      c(165, -40)
    )
  ) |>
  e_scatter(lat, mag, coord_system = "geo") |>
  e_visual_map(min = 4, max = 6.5)

# timeline
iris |>
  group_by(Species) |>
  e_charts(Petal.Width, timeline = TRUE) |>
  e_scatter(Sepal.Width, Sepal.Length) |>
  e_tooltip(trigger = "axis")