gg_sf: Sf ggplot

Description

Create a blank ggplot with a wrapper around the ggplot2::geom_sf function.

Usage

gg_sf(
  data = NULL,
  col = NULL,
  facet = NULL,
  facet2 = NULL,
  group = NULL,
  position = "identity",
  stat = "sf",
  coord = ggplot2::coord_sf(clip = "off"),
  pal = NULL,
  pal_na = pal_grey,
  alpha = NULL,
  ...,
  title = NULL,
  subtitle = NULL,
  x_gridlines = FALSE,
  x_title = NULL,
  y_gridlines = FALSE,
  y_title = NULL,
  col_breaks = NULL,
  col_continuous = "gradient",
  col_include = NULL,
  col_labels = NULL,
  col_legend_place = NULL,
  col_legend_ncol = NULL,
  col_legend_nrow = NULL,
  col_legend_rev = FALSE,
  col_limits = NULL,
  col_oob = scales::oob_censor,
  col_rescale = scales::rescale(),
  col_title = NULL,
  col_trans = "identity",
  facet_labels = NULL,
  facet_ncol = NULL,
  facet_nrow = NULL,
  facet_scales = "fixed",
  facet_space = "fixed",
  facet_layout = NULL,
  facet_switch = NULL,
  caption = NULL,
  titles = snakecase::to_sentence_case,
  theme = NULL
)

Value

A ggplot object.

Arguments

data: A data frame or tibble.
col: Unquoted col and fill aesthetic variable.
facet: Unquoted facet aesthetic variable.
facet2: Unquoted second facet variable.
group: Unquoted group aesthetic variable.
position: Position adjustment. Either a character string (e.g."identity"), or a function (e.g. ggplot2::position_identity()).
stat: Statistical transformation. A character string (e.g. "identity").
coord: A coordinate function from ggplot2 (e.g. ggplot2::coord_cartesian()).
pal: Colours to use. A character vector of hex codes (or names).
pal_na: Colour to use for NA values. A character vector of a hex code (or name).
alpha: Opacity. A number between 0 and 1.
...: Other arguments passed to the ggplot2::geom_sf function.
title: Title string.
subtitle: Subtitle string.
x_gridlines: TRUE or FALSE for vertical x gridlines. NULL guesses based on the classes of the x and y.
x_title: Axis title string. Defaults to converting to sentence case with spaces. Use "" for no title.
y_gridlines: TRUE or FALSE of horizontal y gridlines. NULL guesses based on the classes of the x and y.
y_title: Axis title string. Defaults to converting to sentence case with spaces. Use "" for no title.
col_breaks: A function on the limits (e.g. scales::breaks_pretty()), or a vector of breaks.
col_continuous: Type of colouring for a continuous variable. Either "gradient" or "steps". Defaults to "steps" - or just the first letter of these e.g. "g".
col_include: For a numeric or date variable, any values that the scale should include (e.g. 0).
col_labels: A function that takes the breaks as inputs (e.g. scales::label_comma()), or a vector of labels. Note this does not affect where col_intervals is not NULL.
col_legend_place: The place for the legend. Either "b" (bottom), "r" (right), "t" (top) or "l" (left).
col_legend_ncol: The number of columns for the legend elements.
col_legend_nrow: The number of rows for the legend elements.
col_legend_rev: Reverse the elements of the legend. Defaults to FALSE.
col_limits: A vector to determine the limits of the colour scale.
col_oob: A scales::oob_* function that handles values outside of limits for continuous scales. Defaults to scales::oob_censor.
col_rescale: For a continuous col variable, a scales::rescale function.
col_title: Legend title string. Defaults to converting to sentence case with spaces. Use "" for no title.
col_trans: For a numeric variable, a transformation object (e.g. "log10", "sqrt" or "reverse").
facet_labels: A function that takes the breaks as inputs (e.g. scales::label_comma()), or a named vector of labels (e.g. c("value" = "label", ...)).
facet_ncol: The number of columns of facets. Only applies to a facet layout of "wrap".
facet_nrow: The number of rows of facets. Only applies to a facet layout of "wrap".
facet_scales: Whether facet scales should be "fixed" across facets, "free" in both directions, or free in just one direction (i.e. "free_x" or "free_y"). Defaults to "fixed".
facet_space: Whether facet space should be "fixed" across facets, "free" to be proportional in both directions, or free to be proportional in just one direction (i.e. "free_x" or "free_y"). Defaults to "fixed". Only applies where the facet layout is "grid" and facet scales are not "fixed".
facet_layout: Whether the layout is to be "wrap" or "grid". If NULL and a single facet (or facet2) argument is provided, then defaults to "wrap". If NULL and both facet and facet2 arguments are provided, defaults to "grid".
facet_switch: Whether the facet layout is "grid", whether to switch the facet labels to the opposite side of the plot. Either "x", "y" or "both".
caption: Caption title string.
titles: A function to format the x, y and col titles. Defaults to snakecase::to_sentence_case.
theme: A ggplot2 theme.

Examples

Run this code

if (requireNamespace("sf", quietly = TRUE)) {
  sf::st_read(system.file("shape/nc.shp", package = "sf")) %>%
    gg_sf(
      col = AREA,
      pal = viridis::cividis(9))
}

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