Download spatial data of historically comparable municipalities
This function downloads the shape file of minimum comparable area of
municipalities, known in Portuguese as 'Areas minimas comparaveis (AMCs)'.
The data is available for any combination of census years between 1872-2010.
These data sets are generated based on the Stata code originally developed by
doi: 10.1590/0101-416147182phePhilipp Ehrl, and translated
into R by the geobr team.
read_comparable_areas( start_year = 1970, end_year = 2010, simplified = TRUE, showProgress = TRUE )
start_year |
Numeric. Start year to the period. |
end_year |
Numeric. End year to the period. (defaults to 2010) |
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_simplifysf preserving topology with a dTolerance of 100. |
showProgress |
Logical. Defaults to (TRUE) display progress bar |
These data sets are generated based on the original Stata code developed by Philipp Ehrl. If you use these data, please cite:
Ehrl, P. (2017). Minimum comparable areas for the period 1872-2010: an aggregation of Brazilian municipalities. Estudos Econômicos (São Paulo), 47(1), 215-229. https://doi.org/10.1590/0101-416147182phe
An "sf" "data.frame" object
Other general area functions:
read_amazon(),
read_biomes(),
read_census_tract(),
read_conservation_units(),
read_country(),
read_health_region(),
read_immediate_region(),
read_intermediate_region(),
read_meso_region(),
read_micro_region(),
read_municipality(),
read_neighborhood(),
read_region(),
read_semiarid(),
read_state(),
read_statistical_grid(),
read_weighting_area()
## Not run: if (interactive()) {
amc <- read_comparable_areas(start_year=1970, end_year=2010)
}
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.