echarts4r: scatter – R documentation

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echarts4r

scatter

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.
`y_index`	Indexes of x and y axis.
`x_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.

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")

echarts4r

Create Interactive Graphs with 'Echarts JavaScript' Version 5

v0.4.0

Apache License (>= 2.0)

Authors

John Coene [aut, cre, cph], Wei Su [ctb], Helgasoft [ctb], Xianying Tan [ctb] (<https://orcid.org/0000-0002-6072-3521>)

Initial release

2021-03-05

scatter

Description

Usage

Arguments

Scaling function

See Also

Examples

echarts4r

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