Learn R Programming

simplevis (version 5.0.0)

leaflet_stars_col: Stars leaflet map that is coloured.

Description

Map of stars in leaflet that is coloured.

Usage

leaflet_stars_col(
  data,
  col_var,
  pal = NULL,
  pal_na = "#7F7F7F",
  pal_rev = FALSE,
  alpha = 1,
  basemap = "light",
  col_cuts = NULL,
  col_label_digits = NULL,
  col_labels = NULL,
  col_method = NULL,
  col_na_rm = FALSE,
  col_pretty_n = 4,
  col_right_closed = TRUE,
  col_title = NULL,
  map_id = "map"
)

Arguments

data

A stars object. Required input.

col_var

Unquoted attribute to colour the features by. Required input.

pal

Character vector of hex codes.

pal_na

The hex code or name of the NA colour to be used.

pal_rev

Reverses the palette. Defaults to FALSE.

alpha

The opacity of features. Defaults to 1.

basemap

The underlying basemap. Either "light", "dark", "satellite", "street", or "ocean". Defaults to "light". Only applicable where shiny equals FALSE.

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_label_digits

If numeric colour method, the number of digits to round the labels to.

col_labels

A vector to modify colour scale labels.

col_method

The method of colouring features, either "bin", "quantile" or "category." If numeric, defaults to "bin".

col_na_rm

TRUE or FALSE of whether to visualise col_var NA values. Defaults to FALSE.

col_pretty_n

For a numeric colour variable of "bin" col_method, the desired number of intervals on the colour scale, as calculated by the pretty algorithm. Defaults to 4.

col_right_closed

For a numeric colour variable, TRUE or FALSE of whether bins or quantiles are to be cut right-closed. Defaults to TRUE.

col_title

A title string that will be wrapped into the legend.

map_id

The shiny map id for a leaflet map within a shiny app. For standard single-map apps, id "map" should be used. For dual-map apps, "map1" and "map2" should be used. Defaults to "map".

Value

A leaflet object.

Examples

Run this code
# NOT RUN {
library(simplevis)
library(stars)

leaflet_stars_col(example_stars, 
                  col_var = nitrate)

# }

Run the code above in your browser using DataLab