geobr: read_metro_area – R documentation

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read_metro_area

Download spatial data of official metropolitan areas in Brazil

Description

The function returns the shapes of municipalities grouped by their respective metro areas. Metropolitan areas are created by each state in Brazil. The data set includes the municipalities that belong to all metropolitan areas in the country according to state legislation in each year. Original data were generated by Institute of Geography. Data at scale 1:250,000, using Geodetic reference system "SIRGAS2000" and CRS(4674).

Usage

read_metro_area(year = 2018, simplified = TRUE, showProgress = TRUE)

Arguments

`year`	A year number in YYYY format. Defaults to `2018`
`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 `sf::st_simplify()` 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 all official metropolitan areas for a given year
  m <- read_metro_area(2005)

  m <- read_metro_area(2018)
}
## 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