axis_vl: General axis settings (all)

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

Description

axis_vl provide axis lines, ticks and labels to convey how a spatial range represents a data range. Simply put, axes visualize scales.

By default, Vega-Lite automatically creates axes for x, y, row, and column channels when they are encoded. Axis can be customized via the axis property of a channel definition.

The axis_vl function works with all possible channels, but axis_x, axis_y, axis_facet_row and axis_facet_col are offered as conveniences.

Usage

axis_vl(vl, chnl = "x", domain = NULL, grid = NULL, maxExtent = NULL,
  minExtent = NULL, orient = NULL, offset = NULL, position = NULL,
  zindex = NULL, format = NULL, labels = NULL, labelAngle = NULL,
  labelOverlap = NULL, labelPadding = NULL, ticks = NULL,
  tickCount = NULL, tickSize = NULL, values = NULL, title = NULL,
  titleMaxLength = NULL, titlePadding = NULL, remove = FALSE, ...)

axis_x(vl, ...)

axis_y(vl, ...)

axis_facet_col(vl, ...)

axis_facet_row(vl, ...)

Arguments

vl	Vega-Lite object
chnl	x, y, column, or row
domain, grid, maxExtent, minExtent, orient, offset, position, zindex	see axis docs
format, labels, labelAngle, labelOverlap, labelPadding	see axis docs
ticks, tickCount, tickSize, values	see axis docs
title, titleMaxLength, titlePadding	see axis docs
remove	see axis docs
...	deprecated arguments

References

Vega-List Axis spec

Examples

vegalite() %>%
  add_data("https://vega.github.io/vega-editor/app/data/population.json") %>%
  add_filter("datum.year == 2000") %>%
  calculate("gender", 'datum.sex == 2 ? "Female" : "Male"') %>%
  encode_x("gender", "nominal") %>%
  encode_y("people", "quantitative", aggregate="sum") %>%
  encode_color("gender", "nominal") %>%
  scale_x_ordinal_vl(range_step=8) %>%
  scale_color_nominal_vl(range=c("#EA98D2", "#659CCA")) %>%
  facet_col("age", "ordinal", padding=4) %>%
  axis_x(remove=TRUE) %>%
  axis_y(title="population", grid=FALSE) %>%
  view_config(stroke_width=0) %>%
  mark_bar()

vegalite() %>%
  add_data("https://vega.github.io/vega-editor/app/data/population.json") %>%
  add_filter("datum.year == 2000") %>%
  calculate("gender", 'datum.sex == 2 ? "Female" : "Male"') %>%
  encode_x("gender", "nominal") %>%
  encode_y("people", "quantitative", aggregate="sum") %>%
  encode_color("gender", "nominal") %>%
  scale_x_ordinal_vl(range_step=8) %>%
  scale_color_nominal_vl(range=c("#EA98D2", "#659CCA")) %>%
  facet_col("age", "ordinal", padding=4) %>%
  axis_x(remove=TRUE) %>%
  axis_y(title="population", grid=FALSE) %>%
  view_config(stroke_width=0) %>%
  mark_bar()

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