view_config: view aesthetics

In hrbrmstr/vegalite: Tools to Encode Visualizations with the 'Grammar of Graphics'-Like 'Vega-Lite' 'Spec'

Description

At its core, a Vega-Lite specification describes a single plot. This function works to format those views with all of the options avaiable under config.view.* When a facet channel is added, the visualization is faceted into a trellis plot, which contains multiple plots. Each plot in either a single plot or a trellis plot is called a view. View configuration allows us to customize each individual single plot and each plot in a trellis plot.

Usage

view_config(vl, width = 200, height = 200, fill = NULL,
  fill_opacity = NULL, stroke = NULL, stroke_opacity = NULL,
  stroke_width = NULL, stroke_dash = NULL, stroke_dash_offset = NULL)

view_size(vl, width = 200, height = 200)

Arguments

vl	Vega-Lite object
width, height	width and height property of the view configuration determine the width of a visualization with a continuous x-scale and the height of a visualization with a continuous y-scale respectively. Visit the URL in the References section for more information.
fill	fill color
fill_opacity	0.0-1.0
stroke	stroke color
stroke_opacity	0.0-1.0
stroke_width	stroke of the width in pixels
stroke_dash	an array of alternating stroke, space lengths for creating dashed or dotted lines.
stroke_dash_offset	the offset (in pixels) into which to begin drawing with the stroke dash array.

References

Vega-Lite view spec

Examples

vegalite() %>%
  view_size(300, 200) %>%
  add_data("https://vega.github.io/vega-editor/app/data/unemployment-across-industries.json") %>%
  encode_x("date", "temporal") %>%
  encode_y("count", "quantitative", aggregate="sum") %>%
  encode_color("series", "nominal") %>%
  scale_color_nominal_vl(scheme="category20b") %>%
  timeunit_x("yearmonth") %>%
  scale_x_time_vl(nice="month") %>%
  axis_x(format="%Y", labelAngle=0) %>%
  mark_area()

hrbrmstr/vegalite documentation built on May 17, 2019, 5:38 p.m.