inst/doc/orbis.R

In orbis: Interactive and High-Resolution Layered Graphics with Built-in World Maps

## ----include = FALSE----------------------------------------------------------
knitr::opts_chunk$set(collapse = TRUE, comment = "#>")

## ----setup--------------------------------------------------------------------
library(orbis)

## -----------------------------------------------------------------------------
p <- orb(mtcars, x = wt, y = mpg, colour = hp, size = disp) +
  orb_points() +
  orb_labs(title = "Fuel economy", x = "Weight (1000 lbs)",
           y = "Miles per gallon", colour = "Horsepower")
p

## -----------------------------------------------------------------------------
orb(mtcars, x = wt, y = mpg, colour = factor(cyl)) +
  orb_points() +
  orb_theme_dark()

## -----------------------------------------------------------------------------
set.seed(1)
df <- data.frame(t = 1:80, v = cumsum(rnorm(80, 0.05)))

orb(df, x = t, y = v) +
  orb_area(alpha = 0.3) +
  orb_line(width = 2, smooth = TRUE) +
  orb_labs(title = "A smoothed series")

## -----------------------------------------------------------------------------
counts <- data.frame(g = c("alpha", "beta", "gamma", "delta"),
                     v = c(23, 41, 17, 35))
orb(counts, x = g, y = v, fill = g) +
  orb_bars() +
  orb_options(legend = FALSE, grid = "y") +
  orb_theme_ink()

## -----------------------------------------------------------------------------
orb(mtcars, x = wt, y = mpg, colour = hp) +
  orb_points() +
  orb_facet(cyl) +
  orb_labs(title = "By cylinder count", x = "Weight", y = "MPG")

## -----------------------------------------------------------------------------
set.seed(3)
d <- data.frame(t = rep(1:40, 3),
                v = c(cumsum(rnorm(40)), cumsum(rnorm(40, 0.3)),
                      cumsum(rnorm(40, -0.2))),
                region = rep(c("north", "south", "east"), each = 40))
orb(d, x = t, y = v) +
  orb_area(alpha = 0.3) + orb_line() +
  orb_facet(region, ncol = 3, scales = "free_y")

## -----------------------------------------------------------------------------
orb(mtcars, x = wt, y = mpg, colour = hp) +
  orb_points() +
  orb_scale_colour("magma", reverse = TRUE) +
  orb_scale_size(range = c(3, 16)) +
  orb_scale_y(limits = c(10, 35))

## -----------------------------------------------------------------------------
orb_palettes()

## -----------------------------------------------------------------------------
str(world_map)

## -----------------------------------------------------------------------------
vals <- data.frame(region = c("Brazil", "India", "France", "China", "Nigeria"),
                   v = c(3, 9, 5, 8, 6))
orb_worldmap(values = vals, value_col = "v", projection = "robinson") +
  orb_labs(title = "A small choropleth")

## -----------------------------------------------------------------------------
orb_worldmap(values = vals, value_col = "v", projection = "equalearth",
             palette = "ice") +
  orb_labs(title = "Equal Earth")

## -----------------------------------------------------------------------------
orb_worldmap(projection = "orthographic", ocean = "#0B1F33") +
  orb_coord_map("orthographic", centre = c(20, 15)) +
  orb_theme_dark()

## -----------------------------------------------------------------------------
cities <- data.frame(
  long = c(2.35, -74.0, 151.2, 77.2, -43.2),
  lat  = c(48.86, 40.7, -33.87, 28.6, -22.9),
  pop  = c(11, 19, 5, 32, 13)
)
orb(cities, x = long, y = lat, size = pop) +
  orb_map(fill = "#E9ECEF") +
  orb_geo_points(colour = "#F76707") +
  orb_coord_map("robinson") +
  orb_labs(title = "Cities")

## ----eval = FALSE-------------------------------------------------------------
# orb_save(p, "figure.png", dpi = 600)   # high-resolution raster for print
# orb_save(p, "figure.pdf")              # vector
# orb_save(p, "figure.svg")              # vector, still interactive
# orb_save(p, "figure.html")             # self-contained interactive page
# orb_interactive(p)                     # open in the viewer