The goal of ceylon is to provide data to plot maps of Sri Lanka.
You can install the development version from GitHub with:
# install.packages("devtools")
devtools::install_github("thiyangt/ceylon")library(ceylon)
#>
#> Attaching package: 'ceylon'
#> The following object is masked from 'package:datasets':
#>
#> rivers
library(tidyverse)
#> ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ──
#> ✔ dplyr 1.1.4 ✔ readr 2.1.4
#> ✔ forcats 1.0.0 ✔ stringr 1.5.1
#> ✔ ggplot2 3.4.4 ✔ tibble 3.2.1
#> ✔ lubridate 1.9.3 ✔ tidyr 1.3.0
#> ✔ purrr 1.0.2
#> ── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
#> ✖ dplyr::filter() masks stats::filter()
#> ✖ dplyr::lag() masks stats::lag()
#> ℹ Use the conflicted package (<http://conflicted.r-lib.org/>) to force all conflicts to become errors
library(sp)
library(viridis)
#> Loading required package: viridisLite
data(sf_sl_0)
ggplot(sf_sl_0) + geom_sf()
data(province)
province
#> Simple feature collection with 9 features and 3 fields
#> Geometry type: MULTIPOLYGON
#> Dimension: XY
#> Bounding box: xmin: 362203.3 ymin: 380301.9 xmax: 621918.1 ymax: 813560.9
#> Projected CRS: SLD99 / Sri Lanka Grid 1999
#> # A tibble: 9 × 4
#> geometry PROVINCE Status population
#> * <MULTIPOLYGON [m]> <chr> <chr> <dbl>
#> 1 (((498211.2 611042.6, 498401.7 610897.1, 498415.9 … CENTRAL Provi… 2781000
#> 2 (((609877 559315.9, 609857.5 559313, 609845.2 5593… EASTERN Provi… 1746000
#> 3 (((501928.5 712099.6, 501970.4 712098.8, 502020 71… NORTH C… Provi… 1386000
#> 4 (((393087.5 629959, 393098.1 629956.7, 393103.2 62… NORTH W… Provi… 2563000
#> 5 (((405858.7 700083.7, 405855.3 700082, 405851.5 70… NORTHERN Provi… 1152000
#> 6 (((432117.3 521875.5, 432083.5 521852.9, 432041.7 … SABARAG… Provi… 2070000
#> 7 (((481925.5 381353.7, 481922.9 381350.3, 481919 38… SOUTHERN Provi… 2669000
#> 8 (((522825 568220.9, 522872.6 568217.7, 522926.1 56… UVA Provi… 1387000
#> 9 (((411888.2 438189.4, 411886.4 438182.3, 411881.7 … WESTERN Provi… 6165000
ggplot(province) + geom_sf(mapping = aes(), show.legend = TRUE)
data(district)
ggplot(district) + geom_sf() + scale_fill_viridis()
data(sf_sl_3)
ggplot(sf_sl_3) + geom_sf()
data("rivers")
ggplot(data = sf_sl_0) +
geom_sf(fill="#edf8b1", color="#AAAAAA") +
geom_sf(data=rivers, colour="#253494") +
labs(title = "Sri Lanka Rivers and Streams")
ggplot(province) +
geom_sf(mapping = aes(fill = population), show.legend = TRUE) + scale_fill_viridis()
library(cartogram)
library(sf)
#> Linking to GEOS 3.10.2, GDAL 3.4.2, PROJ 8.2.1; sf_use_s2() is TRUE
library(sp)
cont <- cartogram_cont(province,
weight = "population") |>
st_as_sf()
ggplot(cont) +
geom_sf(aes(fill = population), colour = "white") + scale_fill_viridis()
ncont <- cartogram_ncont(province,
weight = "population") |>
st_as_sf()
ggplot(ncont) +
geom_sf(data = province) +
geom_sf(aes(fill = population), colour = "white") + scale_fill_viridis()
dorl <- cartogram_dorling(province,
weight = "population") |>
st_as_sf()
ggplot(dorl) +
geom_sf(data = province) +
geom_sf(aes(fill = population), colour = "white") + scale_fill_viridis()
Talagala, T. S. (2023). ceylon: Creating Maps of Sri Lanka Administrative Regions, Rivers and Streams. Zenodo. https://doi.org/10.5281/zenodo.10432141
Talagala, T. S. (2024). ceylon: An R package for plotting the maps of Sri Lanka. arXiv preprint arXiv:2401.02467.
This package is inspired by the talk given by Stephanie Kobakian at R-Ladies Colombo meetup.