SurvMapper: Map your prepared data with SurvMapper

In TommiKarki/SurvMaps: Get geo data from ECDC GIS server, prepare geodata for ggplot2, EU/EEA survmapper

Description

Creates surveillance chloropleth maps for data prepared with PrepMap. Note that due to the use of grid for legend and the small inlets for non-visible countries, mapping is not superswift and elements appear one by one to the graph. Also, the alignment of the legend, as well as fontsize depends on the width x height. Current ideal dimensions approximately 1000x680. Currently uses 'Arial' font, to be updated to 'Tahoma'.

Usage

SurvMapper(data, fills, long = "long", lat = "lat", id = "id",
  GEO_ID = "GEO_ID", bground = "isEEA", Legend_title, col_scale,
  fill_levels = NULL, reverse_colours = FALSE)

Arguments

data	Your spatial data that you want to map, prepared to work with ggplot2, currently only chloropleth available
fills	Your column/variable(s) that your want to map. Preferably a factor in defined order.
long	Your longitude variable, defaults to 'long'
lat	Your latitude variable, defaults to 'lat'
id	Your spatial id variable, defaults to 'id'
GEO_ID	Your spatial id variable (e.g. country code), defaults to 'GEO_ID'
bground	Your variable with 1/0 to classify the grey background (0's included only in lightgrey), defaults to 'isEEA'
Legend_title	Legend title(s). More than one if more than one fills.
col_scale	Colour scale, use 'green', 'red', 'blue' or 'qualitative'. Note that the last category is always "No data" grey. More than one if more than one fills.
fill_levels	The order to map the levels in fills; only works with one fills variable.
reverse_colours	Reverse the order of the colour scale. Note that the last category is always "No data" grey.

Author(s)

Tommi Karki

Examples

# load the included dummy data
load(system.file("extdata", "dummy_data.rds", package = "SurvMaps"))
# Get the EU/EEA and candidate country SpatialPolygonsDataframe, including a variable "isEEA"
plg_map <- get_GEO_data(layer = 1, STAT_LEVL = c(0), FIELDS = c("isEEA", "GEO_ID"))

# Prepare the data for SurvMapper with PrepMap
mymap <- PrepMap(data = dummy_data , geo = plg_map)

# The map is correctly aligned only for selected width/height, so you can plot into a predefined device
dev.new(width=11.8,height=8, noRStudioGD = TRUE)

# Simple chloropleth map
SurvMapper(mymap, fills ="Dummy_status", Legend_title = "Testing this", col_scale = "red")

# Chloropleth map with some additional options
SurvMapper(mymap, fills ="Dummy_status", Legend_title = "Testing this", 
       fill_levels = c("Dummy4",
                       "Dummy3",
                       "Dummy2", 
                       "Dummy1",
                       "No data"),
       col_scale = "red", reverse_colours = TRUE)

# Note that you can map at once several columns, but all options are not yet available for this scenario - 
# e.g. level order is good to be predefined if plotting several columns. And depends on graphical device (e.g. recording)
SurvMapper(mymap, fills = c("Dummy_status", "Dummy2"), Legend_title = c("Testing this", "And also this"),
       col_scale = c("blue", "qualitative"))

TommiKarki/SurvMaps documentation built on May 31, 2019, 10:45 p.m.