geobr: read_urban_area – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

read_urban_area

Download spatial data of urbanized areas in Brazil

Description

This function reads the official data on the urban footprint of Brazilian cities in the years 2005 and 2015. Original data were generated by the Institute of Geography and Statistics (IBGE) For more information about the methodology, see details at https://biblioteca.ibge.gov.br/visualizacao/livros/liv100639.pdf

Usage

read_urban_area(year = 2015, simplified = TRUE, showProgress = TRUE)

Arguments

`year`	A year number in YYYY format. Defaults to `2015`
`simplified`	Logic `FALSE` or `TRUE`, indicating whether the function returns the data set with 'original' resolution or a data set with 'simplified' borders. Defaults to `TRUE`. For spatial analysis and statistics users should set `simplified = FALSE`. Borders have been simplified by removing vertices of borders using `st_simplify{sf}` preserving topology with a `dTolerance` of 100.
`showProgress`	Logical. Defaults to `TRUE` display progress bar

Value

An "sf" "data.frame" object

Examples

## Not run:  if (interactive()) {
# Read urban footprint of Brazilian cities in an specific year
d <- read_urban_area(year=2005)
} 
## End(Not run)

geobr

Download Official Spatial Data Sets of Brazil

v1.6.1

MIT + file LICENSE

Authors

Rafael H. M. Pereira [aut, cre] (<https://orcid.org/0000-0003-2125-7465>), Caio Nogueira Goncalves [aut], Paulo Henrique Fernandes de Araujo [ctb], Guilherme Duarte Carvalho [ctb], Rodrigo Almeida de Arruda [ctb], Igor Nascimento [ctb], Barbara Santiago Pedreira da Costa [ctb], Welligtton Silva Cavedo [ctb], Pedro R. Andrade [ctb], Alan da Silva [ctb], Carlos Kauê Vieira Braga [ctb], Carl Schmertmann [ctb], Alessandro Samuel-Rosa [ctb], Daniel Ferreira [ctb], Ipea - Institue for Applied Economic Research [cph, fnd]

Initial release

2021-04-15