simplevis (version 2.4.0)

ggplot_sf_col_facet: Map of simple features in ggplot that is coloured and facetted.

Description

Map of simple features in ggplot that is coloured and facetted.

Usage

ggplot_sf_col_facet(data, col_var, facet_var, col_method = NULL,
  col_cuts = NULL, col_quantile_by_facet = TRUE, pal = NULL,
  pal_rev = FALSE, size = 0.5, alpha = 0.9, facet_nrow = NULL,
  legend_ncol = 3, legend_digits = 1, boundary = NULL,
  boundary_behind = TRUE, boundary_pal = "#7f7f7f",
  boundary_size = 0.2, title = "[Title]", subtitle = NULL,
  col_title = "", caption = NULL, legend_labels = NULL,
  font_family = "Helvetica", font_size_title = NULL,
  font_size_body = NULL, title_wrap = 70, subtitle_wrap = 80,
  wrap_col_title = 25, caption_wrap = 80)

Arguments

data

A sf object with defined coordinate reference system. Required input.

col_var

Unquoted variable for points to be coloured by. Required input.

facet_var

Unquoted categorical variable to facet the data by. Required input.

col_method

The method of colouring features, either "bin", "quantile" or "category." NULL results in "category", if categorical or "quantile" if numeric col_var. Note all numeric variables are cut to be inclusive of the min in the range, and exclusive of the max in the range (except for the final bucket which includes the highest value).

col_cuts

A vector of cuts to colour a numeric variable. If "bin" is selected, the first number in the vector should be either -Inf or 0, and the final number Inf. If "quantile" is selected, the first number in the vector should be 0 and the final number should be 1. Defaults to quartiles.

col_quantile_by_facet

TRUE of FALSE whether quantiles should be calculated for each group of the facet variable. Defaults to TRUE.

pal

Character vector of hex codes. Defaults to NULL, which selects the colorbrewer Set1 or viridis.

pal_rev

Reverses the palette. Defaults to FALSE.

size

Size of features (or shape outlines if polygon). Defaults to 0.5.

alpha

The opacity of polygons. Defaults to 0.9.

facet_nrow

The number of rows of facetted plots.

legend_ncol

The number of columns in the legend.

legend_digits

Select the appropriate number of decimal places for numeric variable auto legend labels. Defaults to 1.

boundary

A sf object as administrative boundaries (or coastlines). Defaults to no boundaries added.

boundary_behind

TRUE or FALSE as to whether the boundary is to be behind the sf object defined in the data argument. Defaults to TRUE.

boundary_pal

Colour of the boundary. Defaults to "#7F7F7F".

boundary_size

Size of the boundary. Defaults to 0.2.

title

Title string. Defaults to "[Title]".

subtitle

Subtitle string. Defaults to "[Subtitle]".

col_title

Colour title string for the legend. Defaults to NULL.

caption

Caption title string. Defaults to NULL.

legend_labels

A vector of manual legend label values. Defaults to NULL, which results in automatic labels.

font_family

Font family to use. Defaults to "Helvetica".

font_size_title

Font size for the title text. Defaults to 11.

font_size_body

Font size for all text other than the title. Defaults to 10.

title_wrap

Number of characters to wrap the title to. Defaults to 70.

subtitle_wrap

Number of characters to wrap the subtitle to. Defaults to 80.

wrap_col_title

Number of characters to wrap the colour title to. Defaults to 25.

caption_wrap

Number of characters to wrap the caption to. Defaults to 80.

Value

A ggplot object.

Examples

# NOT RUN {
 pal <- c("#4575B4", "#D3D3D3", "#D73027")

ggplot_sf_col_facet(data = example_sf_point, col_var = trend_category, facet_var = trend_category,
 boundary = nz, pal = pal,
 title = "Trends, 1990-2017")
# }